[Efficacy and safety of a combined oral contraceptive containing drospirenone 3 mg and ethinylestradiol 20 µg in a 24+4-day regimen in China].
Caiyan W, Wen D, Qinping L, Huan S, Ziyan H, Liangdan T, Zheng'ai X, Yufeng L, Shulan Z, Baihua D, Xiaoyan X, Mulan R, Xiaomao L, Youdi X, Zhisong M, Meiqing X, Hongyu W, Zirong H.
Caiyan W, et al. Among authors: yufeng l.
Zhonghua Fu Chan Ke Za Zhi. 2014 May;49(5):355-9.
Zhonghua Fu Chan Ke Za Zhi. 2014.
PMID: 25030732
Chinese.