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Haider R, Azad Khan AK, Roy SK, Dewan N, Alam AN, Mahalanabis D.Haider R, et al. Among authors: roy sk.BMJ. 1994 Mar 5;308(6929):624-6. doi: 10.1136/bmj.308.6929.624.BMJ. 1994.PMID: 8148710Free PMC article.Clinical Trial.
Roy SK, Islam A, Ali R, Islam KE, Khan RA, Ara SH, Saifuddin NM, Fuchs GJ.Roy SK, et al.Trans R Soc Trop Med Hyg. 1998 Jul-Aug;92(4):460-2. doi: 10.1016/s0035-9203(98)91094-x.Trans R Soc Trop Med Hyg. 1998.PMID: 9850410Clinical Trial.
Khatun UH, Malek MA, Black RE, Sarkar NR, Wahed MA, Fuchs G, Roy SK.Khatun UH, et al. Among authors: roy sk.Acta Paediatr. 2001 Apr;90(4):376-80.Acta Paediatr. 2001.PMID: 11332926Clinical Trial.
Chowdhury S, Sarkar NR, Roy SK.Chowdhury S, et al. Among authors: roy sk.J Health Popul Nutr. 2002 Mar;20(1):26-30.J Health Popul Nutr. 2002.PMID: 12022155