Wu Xue Qing, Xu Xin Xin, Zhou Zhi Yang, Quinn M J
Department of Obstetrics & Gynaecology, First Affiliated Hospital, Medical University of Wenzhou, Wenzhou, Zhejiang, China.
BJOG. 2018 Mar;125(4):511-512. doi: 10.1111/1471-0528.15008. Epub 2017 Dec 14.