<p class="MsoNormal" style="margin: 0cm 0cm 0pt"><span style="font-family: 宋体; mso-ascii-font-family: Calibri; mso-ascii-theme-font: minor-latin; mso-fareast-font-family: 宋体; mso-fareast-theme-font: minor-fareast; mso-hansi-font-family: Calibri; mso-hansi-theme-font: minor-latin"><font size="3">阴道环的研究进展</font></span><span lang="EN-US"><o:p></o:p></span>