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International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics|December 2, 1998
The classification of gestational trophoblastic disease: a critical reviewK F Tham, S S Ratnam
British Journal of Obstetrics and Gynaecology|February 1, 1977
Termination of pregnancy with vaginal administration of 16, 16 dimethyl prostaglandin E2 p-benzaldehyde semicarbazone esterS M Karim, S S Ratnam
Annals of the Academy of Medicine, Singapore|October 1, 1982
Steroidogenesis in hydatidiform mole--sources of androgensH H Goh, S S Ratnam
Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology|June 1, 1988
The LH surge in humans: its mechanism and sex differenceH H Goh, S S Ratnam
Archives of Sexual Behavior|October 1, 1990
Effect of estrogens on prolactin secretion in transsexual subjectsH H Goh, S S Ratnam
Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology|June 1, 1990
Effects of estrogens, clomiphene and castration in a male transsexual with as compared to those without hypersecretion of gonadotropinsH H Goh, S S Ratnam
Singapore Medical Journal|December 1, 1989
Management of unexplained infertilityC L Chan, S S Ratnam
The Journal of Reproductive Medicine|August 1, 1985
Endometrial reaction after embryo replacement. A report of two casesS C Ng, S S Ratnam
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