%0 Journal Article
%T Preparation and Evaluation of Intravaginal Ring Containing Drospirenone
%A Ying Zhang
%A Chun-Xiao Li
%A Mei-Ying Ning
%A Xue-Yan Duan
%J Advances in Pharmacological Sciences
%D 2013
%I Hindawi Publishing Corporation
%R 10.1155/2013/192408
%U http://dx.doi.org/10.1155/2013/192408