aDepartment of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
bDepartment of Obstetrics and Gynecology, National Yang-Ming University, Taipei, Taiwan, ROC
cInstitute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
dDepartment of Medical Research, China Medical University Hospital, Taichung, Taiwan, ROC
Received September 7, 2019; accepted September 7, 2019.
Conflicts of interest: The authors declare that they have no conflicts of interest related to the subject matter or materials discussed in this article.
*Address correspondence: Dr. Peng-Hui Wang, Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, 201, Section 2, Shi-Pai Road, Taipei 112, Taiwan, ROC. E-mail address: [email protected] (P.-H. Wang).
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).