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Family Rubiaceae
Mankit
Rubia cordifolia Linn.
MADDER

Hong teng zi cao

Scientific names Common names
Dioscorea verticillata Lam. Kamagut (Ig.)
Galium cordifolium (L.) Kuntze Mankit (Ig.)
Rubia clematifolia Reinw. ex Miq. Pantig-pantig (Bag.)
Rubia cordata Thunb. Patudtud (Ig.)
Rubia cordifolia Linn. Heart-leaved madder (Engl.)
Rubia javana DC. Indian madder (Engl.)
Rubia pratensis (Maxim.) Nakai Madder (Engl.)
Rubia pubescens (Nakai) Nakai  
Rubia purpurea Decne  
Rubia scandens Zoll. & Moritzi  
Rubia secunda Moon  
Rubia cordifolia L. is an accepted name The Plant List

Other vernacular names
BENGALI: Munjeet, manjistha
CHINESE: Hong teng zi cao, Qian cao.
FRANCE: Garance de l'Inde.
GERMAN: Indischer Krapp.
HINDI: Majith, manjit.
JAPANESE: Indo akane.
MALAYALUM: Manjithi..
NEPALESE: Majitho, mangito.
SANSKRIT: Aruna, gandari, manjishta, samanga.
TAMIL: Manjitti, Manditti.

Botany
Mankit is a slender, branched, creeping or climbing herb growing to a height of about 4 meters, with numerous small prickles on the stems. Leaves are 4 to 7 in a whorl around a central stem, ovate, 3 to 5 centimeters long, pointed at the tip, heart-shaped at the base, and rough above, on the veins beneath, and especially on the margins, being furnished with small, white, recurved prickles. Petioles are long - about twice as long as the blade - with many sharp, recurved prickles on the angles. Flowers are minute, white or yellow, and on short, smooth stalks. Corolla-tube is thick and very short, lobes being ovate and obtuse. Fruit is rounded, 6 to 8 millimeters long, shining, and purplish black.

Distribution
- In thickets and forests chiefly between altitudes of 1,000 and 2,000 meters.
- Common in mossy forests.
- Found in Ifugao, Lepanto, Bontoc, Benguet, Rizal, Laguna and Tayabas Provinces in Luzon; and in Lanao and Davao in Mindanao.
- Also occurs in Japan to India, Malaya and tropical Australia.

Constituents
- Principle constituents are purpurin, munjistin, xanthopurpurin.
- Roots yield acid ruberthyrin, which through drying, fermentation, and acid treatment changes to sugar, alzarin and purpurin. Purpurin when dissolved in alkali become red.
- Munjistin, a coloring principle, has been isolated from the roots. It has been found to be identical with purpuro xanthin-carboxylic acid.
A Perkin and Hummel study concluded the coloring principles of Rubia sikkimensis and R. cordifolia are very nearly identical; both contain purpurin, munjistin and purpuroxanthin.
- Phytochemical screening yielded alkaloids, phytosterols, saponins, tannins, carbohydrates, phenolic compounds, anthraquinone glycosides, triterpenoids.
- Dried roots of R. cordifolia yielded mollugin, 1-hydroxy-2-methyl-9, 10-anthraquinone, alizarin, 1, 3-dihydroxy-2-ethoxymethyl-9, 10-anthraquinone, lucidin primeveroside, ruberythric acid and three new anthraquinones, 2-methyl-1, 3, 6-trihydroxy-9, 10-anthraquinone, 2-methyl-1, 3, 6-trihydroxy-9, 10-anthraquinone 3-O-(6'-O-acetyl)-α-rhamnosyl-(1→2)-β-glucoside and 2-methyl-1, 3, 6-trihydroxy-9, 10-anthraquinone 3-O-α-rhamnosyl (1→2)-β-glucoside. (33)

Properties
- Colorant, astringent, deobstruent, tonic, antibacterial, anti-inflammatory.
- Roots are bitter, sweet, acrid.
- Roots considered astringent, alterative, anodyne, anthelmintic, antidysenteric, antiphlogistic, antitussive, diuretic, emmenagogue, expectorant, hemostatic, styptic, tonic, and vulnerary.

Parts used
Roots, stem, leaves, fruits.

Uses

Culinary
- In Tanzania, ash of burnt stems used as vegetable salt to soften vegetables in cooking.
- In Indonesia, leaves are used as side dish with rice.
Folkloric
- In the Philippines root decoction used for certain disorders of the urinary tract.
- Worldwide, popular for its use in skin diseases like eczema, dermatitis, skin ulcers.
- Roots used to lower blood pressure. Also used in rheumatism, bronchitis, renal lithiasis, dysentery.
- In
India, used for treatment of cuts, wounds and burns.
- In Ayurveda, used to cure the Kapha, inflammatory diseases of the uterus and vagina, leucoderma, jaundice and piles.
- In
Hindu medicine, root used as external astringent, applied to inflamed parts, ulcers, fractures, etc.
- Mixed with honey, it is applied to brown spots of pityriasis versicolor.
- The
Mahometans used the drug as deobstruent, prescribing it in paralytic affections, jaundice, obstructions of the urinary passages and amenorrhea.
- Fruit is used for hepatic obstruction.
- Decoction of roots and stems used as vermifuge.
- Paste made of roots and honey used for freckles and other skin discolorations. Paste of roots also used for ulcers, inflammation and skin affections.
- Hakims used root infusions to women after delivery, to procure a copious flow of lochia.
- In Uganda and
Tanzania, leaves used as poison antidote. Decoction of crushed leaves used for treatment of mouth sores and diarrhea.
- In
Rwanda, root decoction used for weight loss during pregnancy, urethral leaks, dizziness, paresthesias and kidney problems.
- In
Ethiopia, leaves used for malaria, itches, and to stop bleeding. Also, for amoebic dysentery, cancer and cough.
- In
Tanzania and Kenya, rubbed and balled leaves used as antiseptic and to stop wound bleeding. Root decoction used as emetic for certain stomach problems.
- In
South Africa, roots used as aphrodisiac and in the treatment of impotence.
- In Chinese medicine, used for treatment of cough, joint inflammation, uterine hemorrhage and uteritis.
Others
Dye
- In Hindu medicine, madder is used as coloring agent, providing color when boiled with medicated oils.
- Used as a dye plant in Asia where red dye extracted from roots and stems have been used to dye silk, linen, cotton fabrics (chintz) and woolen carpets and blankets.
- Roots used as ingredient in ink recipes.
- In South Africa, roots are used to dye wool. In Ethiopia use to dye wool and bread baskets in shades of pink, red, purple or maroon.
- Roots are important ingredients in red ink recipes. Juice of crushed fruits used as green to bluish ink.
Livestock
- In Burundi a leaf decoction used for hemorrhagic diarrhea in newborn calves. Also, used in treatment of fleas, ticks and mites in animals.


Studies
COX-2 Inhibitor / Cancer Chemoprevention:
Study isolated several secondary plant metabolites from the roots of R. cordifolia and rhizomes of G. glabra. A few molecules showed potent COX-2 inhibitory activity which may serve as lead molecules for cancer chemoprevention studies. (3)
Radioprotective: Study of radioprotective potential of alcoholic extract of root of Manjistha showed a significant radiation protection (67%) as assessed by increased animal survival when R. cordifolia extract was administered intraperitoneally before radiation exposure. Results suggest the alcoholic root extract provides protection against radiation-induced lipid peroxidation, hemopoietic injury and genotoxicity. (4)
Anti-urolithiasis / Roots: Study showed a protective effect of the hydro-alcoholic extract of R. cordifolia roots against ethylene glycol-induced urolithiasis in rats. Mechanism may be through antioxidant nephroprotection and an effect on urinary concentration of stone-forming constituents. (5)
Anti-urolithiasis One of the major constituents of the roots is ruberythric acid, widely used as phytotherapy in treating urinary tract calcium containing stones.
Neuroprotective / ß-Amyloid Induced Cognitive Dysfunction: Study of animals with ß-amyloid induced cognitive dysfunction pretreated with an ethanolic extract of R. cordifolia showed significant protective effect on neurodegeneration and showed improvement in memory retention activity. The neuroprotective activity of the plant on alzheimer's type dementia may be due to inhibition of AChE, MAO, free radical scavenging activity. (6)
Gastroprotective: Study in Wister rats investigating the activity of R. cordifolia against experimentally induced gastric ulcer showed the chloroform fraction with significant activity at lower doses compared to the parent extract. Mechanism can be attributed to decrease gastric acid secretory activity along with strengthening of the mucosal defensive mechanism by prostaglandin synthesis and antioxidant potential. (7)
New Anthraquinone / Rubiacordone / Antimicrobial: Study isolated Rubiacordone, a new anthraquinone with a known anthraquinone. Metabolites 1 and 2 showed considerable antimicrobial activity against Gram-positive bacteria. (8)
Radical Scavenging Activity: Study of several extracts evaluating the free radical scavenging activity of R. cordifolia showed very high correlation coefficient of the concentration used and radical scavenging activity of all the extract/fractions. Phytochemicals showed presence of anthraquinones and their glycosides. Results showed constituents that may be exploited in the food industry as chemopreventive agents. (9)
Wound Healing Activity: Study of alcoholic extract and its hydrogel for its healing efficacy on an excision wound model in mice showed significant effects in wound contracting ability, wound closure, decrease in wound surface are and tissue regeneration at the wound site and histopathological improvement. Results provide scientific rationale for the traditional use of the plant in the management of wounds. (11)
Anti-inflammatory / Analgesic / Roots: Study in rats of anti-inflammatory and analgesic effects of the methanolic extract of roots showed significant reduction of carrageenan-induced paw edema and significant increased reaction time in tail flick test. (12)
Anti-inflammatory: Study on ethanolic extract showed anti-inflammatory effects comparable with the standard drug indomethacin.
Hepatoprotective / CCl4-Induced Hepatic Damage: Study in rats showed the hepatoprotective activity of an aqueous-methanol extract of R cordifolia in acetaminophen and CCl4-induced hepatic damage. (13)
Antitumor: Study of a dichlormethane fraction of Rubia cordifolia extract exhibited potent inhibition of human leukemia cell line and human histolytic lymphoma cell line. It was also found to be lesser active against normal human kidney cells, displaying safety for normal cells. (14)
Renoprotective / Cisplatin Induced Toxicity: Study showed the hydroalcoholic extract of R. cordifolia to be effective in reducing the renal damage caused by cancer chemotherapeutic drug cisplatin. It suggests a beneficial adjuvant use in ameliorating renal damage in patients undergoing cancer chemotherapy. (15)
Antihyperglycemia / Antistress / Nootropic : Study of alcoholic extract of roots showed reduction of elevation of blood glucose in alloxan treated animals. There was also enhancement of brain GABA and decreased brain dopamine and plasma corticosterone levels. (17)
Pharmacognostic Study of Roots / Gastroprotective / Ulcer Healing: Study of a chloroform fraction showed potent protective action for stress-induced complications in mice. R. cordifolia was less potent than ranitidine but the antioxidant activity was more potent than ranitidine. (21)
Antibacterial / ESBL E. coli: Results of study of R. cordifolia extract against ESBL (Extended Spectrum Beta-Lactamase) producing urinary E. coli suggested inhibitory properties of an ethanolic extract. The plant can be a potential candidate as alternative antibacterial agent to combat drug resistant organisms. Further studies and scientific validation are required. (22)
Antihyperglycemic / Antihyperlipidemic / Leaves: Study of alcoholic extract of leaves in norma and alloxan-induced diabetic rats showed decreases in blood glucose and promising antidiabetic. Serum cholesterol and triglyceride levels were decreased and serum HDL was increased. (23)
In-vitro Anticancer Activity / Hela and Hep-2 Cell Lines: A methanolic fraction of Rc extract showed promising cytotoxic activity against human larynx carcinoma and human cervical cancer. (24)
Antioxidant Effect in Lead Nitrate-Induced Immunosuppression: A combination treatment with R. cordifolia showed a significant reversal of lead nitrate-induced toxicity on oxidative stress and immunological parameters. The RC can prevent LN-induced immunosuppression from oxidative stress due to it antioxidant property. (25)
Presence of Calcium Channel Blockers: Study evaluated crude extract of Rubia cordifolia for possible calcium channel antagonistis activity.. The extract exhibited spasmolytic activity similar to verapamil suggestive of the presence of calcium channel blocker like constituents, which may explain the folkloric use of the plant for disintegration of unrinary stones. (26)
Anti-Inflammatory / Stems: Study of an ethanolic extract of stem in carrageenan induced paw edema in rats showed anti-inflammatory activity. Indomethacin was used as standard. (28)
Toxicity Profile of Fruits / Dibutyl Phthalate: Study reports on the presence of dibutyl phthalate in the fruits of R. cordifolia and evaluated the acute toxicity of crude ethanolic extracts in Swiss albino mice. No mortality was observed with 100, 500, and 1000 mg/kbw doses, indicating an LD50 value higher than 1000 mg/kbw. Study showed a significant change in body weight, with differences in ALT, total protein, triglycerides, glucose and histopatho analysis of the liver compared to control. Results highlight the toxic potential of R. cordifolia fruit extracts and its toxicity profile. (29)
Anti-Tumor Cnstituent / Mollugin / Extraction Technique: Mollygin, a major active constituent of R. cordifolia, is recognized for a potential anti-tumor compound. Study reports of an extraction method with a yield higher than conventional extraction methods. (30)
Alizarin / Tablet Film Coating: Alizarin (1,2-dihydroxyanthraquinone) is the major pigment extracted from Rubia cordifolia. Study extracted the manjith dye and alizarin pigment from RC and used it as film coating of triphala guggle ayurvedic (TGA) tablet. TGA tablets coated with M-extract, M-dye were not very stable, but TGA tablets coated with alizarin and acetylated alizarin showed stability beyong six months. Acetylated alizarin can be recommended for TGA tablet coating. (31)
In Vivo Antioxidant Activity Against Alcohol Induced Immunosuppression / Roots: Study evaluated the in vivo antioxdant activity of an alcoholic extract of roots and its influence on ethanol induced impairment of immune responses. Study suggests the ethanol-induced immunosuppressive is due to oxidative stress which can be prevented by RC through its in vivo antioxidant property. (32)
Antiglycation / Antioxidant / Antidiabetic: Study showed the root extract of Rubia cordifolia has significant antiglycation and antioxidant activity indicating a potential for use as as antidiabetic drug. (34)
Apoptosis in Cancer Cell Line / Root: Study investigated the influence of an ethanolic extract of root of R. cordifolia on the induction of apoptosis in HeLa human cervical cell line. Results showed the extract of root possess significant anti-cancer activity and shows cytotoxic potential against human cervical cancer. (35)

Availability
Wild-crafted.
Capsules, supplements, skin care products in the cybermarket.

Godofredo U. Stuart Jr., M.D.

Last Update January 2016

IMAGE SOURCE: / Photo / Rubiaceae : Rubia cordifolia / Leaf / Copyright © 2004 by Kevin C. Nixon (contact: kcn2@cornell.edu) [ref. DOL7335]/ Non-Commercial Use/ click on image to go to source page / Phytoimages.siu.edu
OTHER IMAGE SOURCE: Line Drawing / Rubia cordifolia L. 1767 - Ostasiatischer Krapp - Indian Madder / [Bildquelle: Wight Icones I, Tab. 187, 1840 / Payer.de

Additional Sources and Suggested Readings
(1)
Rubia cordifolia / Prota 3: Dyes and tannins/Colorants et tanins / Zimudzi, C., 2005. Rubia cordifolia L. In: Jansen, P.C.M. & Cardon, D. (Editors). PROTA 3: Dyes and tannins/Colorants et tanins. [CD-Rom]. PROTA, Wageningen, Netherlands.
(2)
Sorting Rubia names
/ Maintained by: Michel H. Porcher, / MULTILINGUAL MULTISCRIPT PLANT NAME DATABASE
(3)
Rubia cordifolia L. and Glycyrrhiza glabra L. Medicinal Plants as Potential Source of COX-2 Inhibitors / Prabhjit Kaur, Satwinderjeet Kaur et al / Am. J. Biomed. Sci. 2010, 2(2), 108-120; doi: 10.5099/aj100200108
(4)
Role of Rubia cordifolia Linn. in radiation protection / Tripathi YB, Singh AV. / Indian J Exp Biol. 2007 July.
(5)
Protective effect of the hydro-alcoholic extract of Rubia cordifolia roots against ethylene glycol induced urolithiasis in rats / Divakar K, Pawar AT, Chandrasekhar SB, Dighe SB, Divakar G. / Food Chem Toxicol. 2010 Apr
(6)
Neuroprotective Studies of Rubia cordifolia Linn. on β-amyloid Induced Cognitive Dysfunction in Mice / Chitra V, Pavan Kumar K / Int.J. PharmTech Res.2009,1(4)
(7)
Gastroprotective Effect of Rubia cordifolia Linn. on Aspirin Plus Pylorus-Ligated Ulcer / Deoda R S, Dinesh Kumar, S S Bhujbal / Evidence-Based Complementary and Alternative Medicine, Vol 2011 (2011), Article ID 541624, 5 pages / doi:10.1155/2011/541624
(8)
Rubiacordone A: A New Anthraquinone Glycoside from the Roots of Rubia cordifolia / Xiang Li, Zhi Liu et al / Molecules 2009, 14, 566-572; doi:10.3390/molecules14010566
(9)
In vitro evaluation of free radical scavenging activity of Rubia cordifolia L. / Prabhjit Kaur?Bikram Singh et al / Journal of Chinese Clinical Medicine,2008,3(5):278-284.
(10)
Study on Antibacterial Activity of Rubia cordifolia L.on the Major Pathogenic Bacteria Causing Mastitis / Wang Zuo-Xin et al / DOI? CNKI:SUN:AHNY.0.2009-02-066
(11)
Evaluation of the wound healing activity of a crude extract of Rubia cordifolia L. (Indian madder) in mice
/ Karodi R, Jadhav M, Rub R, Bafna A / International Journal of Applied Research in Natural Products
Vol. 2(2), pp. 12-18, June-July 2009
(12)
Evaluation of Anti inflammatory and Analgesic activity of roots of Rubia cordifolia in rats / Anar Patel et al /J. Pharm. Sci. & Res. Vol.2 (12), 2010,809-813
(13)
Effect of Rubia cordifolia extract on acetaminophen and CCl4-induced hepatotoxicity / Anwar-Ul Hassan Gilani, Khalid Hussain Janbaz / Phytotherapy Research, Vol 9, Issue 5, pages 372–375, August 1995 / DOI: 10.1002/ptr.2650090513
(14)
Potent antitumor activity of Rubia cordifolia / Parag Patel, Bhuvan Raval et al / International Journal of Phytomedicine 2 (2010) 44-46
(15)
Amelioration of cisplastin-induced nephrotoxicity in Swiss albino mice by Rubia cordifolia extract
/ Cancer Res Ther, July - Sept 2008, Vol 4, Issue 3
(16)
ANTI-INFLAMMATORY ACTIVITY OF ETHANOLIC STEM EXTRACTS OF RUBIA CORDIFOLIA LINN. IN RATS / Tailor C S et al / International Journal of Research in Ayurveda & Pharmacy, Volume 1, Issue 1, Sep-Oct 2010 126-130
(17)
Antihyperglycemic, Antistress and Nootropic Activity of Roots of Rubia cordifolia Linn / Rupali A Patil, Swati Jagdale et al / Indian J Exp Biol, December 2006
(18)
Rubia cordifolia L. / Catalogue of Life, China 2011
(19)
Rubia cordifolia / Manjishtha (Indian Madder) / Find Me A Cure
(20)
Comparative Studies of Rubia cordifolia L. and its Commercial Samples
/ S. Pathania, R. Daman, S. Bhandari, B. Singh and Brij Lal* / Ethnobotanical Leaflets 11: 179-188. 2006.
(21)
Pharmacognostic and Biological Studies of the Roots of Rubia Cordifolia Linn. (Rubiaceae) / RAMESH S. DEODA, DINESH KUMAR, PRASAD V.KADAM, KAVITA N YADA1, SANTOSH S. BHUJBAL, MANOHAR J.PATIL / Int. J. Drug Dev. & Res., July-Sep 2011, 3 (3): 148-158
(22)
Inhibitory Activity of Rubia cordifolia Plant Extract Against ESBL Producing Urinary E.coli Isolates / Rajesh Sawhney, Vandana Berry, Arun Kumar / Journal of Pharmacy Research, Vol 5, No 3 (2012)
(23)
Antihyperglycemic and Antihyperlipidemic effect of Rubia cordifolia leaf extract on Alloxan-induced Diabetes / A.H. M. Viswanathaswamy, B.C. Koti , A. K. Singh, and A.H.M. Thippeswamy / Journal of Pharmaceutical Sciences, 2011; 1(1):49-54 / doi:10.5530/rjps.2011.1.10
(24)
IN­VITRO ANTICANCER ACTIVITY OF RUBIA CORDIFOLIA AGAINST HELA AND HEP­2 CELL LINE / International Journal of Pharmacy and Pharmaceutical Sciences, Vol 3, Suppl 2, 2011/ S PARAG R. PATEL, AKHIL A. NAGAR, RIKIN C. PATEL, DHARA K. RATHOD, VISHAL R. PATEL /
(25)
The protective effect of Rubia cordifolia against lead nitrate-induced immune response impairment and kidney oxidative damage / Shweta lodi, Veena Sharma, Leena Kansal / Indian Journ of Pharmacology, 2011, Vol 43, No 4, pp 441-444
(26)
Possible Presence of Calcium Channel Blocker(s) in Rubia cordifolia: An Indigenous Medicinal Plant /
Anwar H. Gilani, K.H. Janbaz, M. Zaman, A. Lateef, A. Suria, H.R Ahmed / Journal of Pakistan Medical Association, April 1994
(27)
Rubia cordifolia / Synonyms / The Plant List
(28)
ANTI-INFLAMMATORY ACTIVITY OF ETHANOLIC STEM EXTRACTS OF RUBIA CORDIFOLIA LINN. IN RATS / Tailor Chandra Shekhar *, Bahuguna Y M, Singh Vijender / IJRAP 2010, 1 (1) 126-130
(29)
Toxicity study of dibutyl phthalate of Rubia cordifolia fruits: in vivo and in silico analysis / Amrita Anantharaman, Rajendra Rao Priya, Hridya Hemachandran, Sivaramakrishna Akella, Chandrasekaran Rajasekaran, Jai Ganesh, Devanand P. Fulzele,* andRamamoorthy Siva / Environmental Toxicology / DOI: 10.1002/tox.22115
(30)
Determination of Anti-Tumor Constitute Mollugin from Traditional Chinese Medicine Rubia cordifolia: Comparative Study of Classical and Microwave Extraction Techniques / Wenyan Ma, Yanbin Lu, Xiaojing Dai, Rui Liu, Ruilin Hu & Yuanjiang Pan* / Separation Science and Technology, Volume 44, Issue 4, 2009 / DOI:10.1080/01496390802691265
(31)
A CASE STUDY ON RUBIA CORDIFOLIA L IN FILM COATING OF TRIPHALA GUGGLE AYURVEDIC TABLETS / N. Rani*, A. Goel and M.K. Bhardwaj / IJPSR (2014), Vol. 5, Issue 7
(32)
IN VIVO EVALUATION OF ANTIOXIDANT ACTIVITY OF ALCOHOLIC EXTRACT OF RUBIA CORDIFOLIA LINN. AND ITS INFLUENCE ON ETHANOL-INDUCED IMMUNOSUPPRESSION / A.A. JOHARAPURKAR, S.P. ZAMBAD, M.M. WANJARI, S.N. UMATHE / Indian Journal of Pharmacology 2003; 35: 232-236
(33)
Studies on a Novel Anthraquinone and Its Glycosides isolated from Rubia cordifolia and R. akane / HIDEJI ITOKAWA, KAZUHIKO MIHARA, KOICHI TAKEYA / Chemical and Pharmaceutical Bulletin, Vol. 31 (1983) No. 7 P 2353-2358 / doi.org/10.1248/cpb.31.2353
(34)
ANTIGLYCATION, ANTIOXIDANT AND ANTIDIABETIC ACTIVITY OF TRADITIONAL MEDICINAL PLANT: RUBIA CORDIFOLIA LINN. FOR MANAGEMENT OF HYPERGLYCEMIA / Sandhya Rani, Pallavi Mandave, Suresh Khadke, Suresh Jagtap, Shankar Patil1 and Aniket Kuvalekar* / International Journal of Plant, Animal and Environmental Sciences, Vol 3, Issue 3, July-Sept 2-13
(35)
Rubia cordifolia Root Extract Induces Apoptosis in Cancer Cell Line
/ Sourabh Tiwari*, Ravi Upadhyaya, Ruchi Shroti, Sharad Trivedi Upadhyaya / Science Secure Journal of Biotechnology (SSJBt ) Volume 1 Issue 2 Page: 39-42

It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

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