Xu Bi-Qiu, Jiang Xiao-Cui, Wan Li, Wang Sha, Yang Yan-Dong, Li Dong-Zhi
Huadu District Maternal and Neonatal Healthcare Hospital of Guangzhou, Hu Zhong Hospital, Guangzhou, Guangdong, China.
Department of Ultrasound, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
J Obstet Gynaecol. 2020 Apr;40(3):440-442. doi: 10.1080/01443615.2019.1606788. Epub 2019 Jul 25.