共 24 条
[2]
American College of Obstetrics and Gynecology, 2001, Int J Gynaecol Obstet, V74, P69
[4]
Brancato RM, 2008, JOGNN-J OBST GYN NEO, V37, P4, DOI [10.1111/j.1552-6909.2007.00205.x, 10.1111/J.1552-6909.2007.00205.x]
[5]
Cahill AG, 2012, AM J OBSTET GYNECOL, V206
[6]
COHEN WR, 1977, OBSTET GYNECOL, V49, P266
[10]
Gray Cunnigham F., 2010, Williams Obstetrics