Article Information
vol. 69 no. 4 878-883
PubMed
Print ISSN
Online ISSN
History
- Accepted October 27, 2020
- Published online April 1, 2021.
Article Versions
- Previous version (December 24, 2020 - 06:56).
- You are viewing the most recent version of this article.
Copyright & Usage
© American Federation for Medical Research 2021. No commercial re-use. See rights and permissions. Published by BMJ.
Author Information
- 1 Obstetrics and Gynecology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- 2 Department of Obstetrics and Gynecology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
- Correspondence to Dr Jianhua Zheng, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China; kelanbai5{at}163.com
Article usage
Statistics from Altmetric.com
Vol 69 Issue 4
Table of Contents
