Authors: Sun, DL Shao, QX Sang, GW

Citation: Dl. Sun et al., A multicentered clinical trial of the long-acting injectable contraceptiveDepo Provera in Chinese women, CONTRACEPT, 62(1), 2000, pp. 15-18

Authors: Coutinho, EM Athayde, C Atta, G Gu, ZP Chen, ZW Sang, GW Emuveyan, E Adekunle, AO Mati, J Otubu, J Reidenberg, MM Segal, SJ

Citation: Em. Coutinho et al., Gossypol blood levels and inhibition of spermatogenesis in men taking gossypol as a contraceptive - A multicenter, international, dose-finding study, CONTRACEPT, 61(1), 2000, pp. 61-67

Authors: Zheng, SR Zheng, HM Qian, SZ Sang, GW Kaper, RF

Citation: Sr. Zheng et al., A randomized multicenter study comparing the efficacy and bleeding patternof a single-rod (Implanon (R)) and a six-capsule (Norplant (R)) hormonal contraceptive implant, CONTRACEPT, 60(1), 1999, pp. 1-8