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Abortion trends in Singapore: a 25-year review.
Singh K, Fai FY, Prasad RN, Ratnam SS. Singh K, et al. Among authors: ratnam ss. J Pediatr Adolesc Gynecol. 1996 Feb;9(1):27-30. doi: 10.1016/s1083-3188(96)70007-4. J Pediatr Adolesc Gynecol. 1996. PMID: 9551373 Review.
New developments in contraceptive technology.
Singh K, Ratnam SS. Singh K, et al. Among authors: ratnam ss. Adv Contracept. 1991 Jun-Sep;7(2-3):137-57. doi: 10.1007/BF01849404. Adv Contracept. 1991. PMID: 1950712 Review.
A reversal of fertility trends in Singapore.
Singh K, Fong YF, Ratnam SS. Singh K, et al. Among authors: ratnam ss. J Biosoc Sci. 1991 Jan;23(1):73-8. doi: 10.1017/s002193200001909x. J Biosoc Sci. 1991. PMID: 1999450
610 results