Sato A, Ishida M, Ishibashi K, Shirasawa H, Akahira S, Miura H, Sato M, Kumagai J, Terada Y
Department of Obstetrics and Gynecology, Akita University School of Medicine , Akita , Japan.
J Obstet Gynaecol. 2014 May;34(4):358. doi: 10.3109/01443615.2013.872608. Epub 2014 Jan 29.