Preparation and in vitro/in vivo evaluation of gestodene (GEST) intravaginal ring

Chunxiao Li1, Meiying Ning2, Xiaodong Yao2

  • 1Research Center of Biomaterial and Novel Drug Delivery Systems, National Research Institute for Family Planning, Da Hui Si Haidian District, Beijing, PR China / Graduate School of Peking Union Medical College; No. 9, Dongdan No. 3 Avenue, Beijing, PR China.

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