共 48 条
[1]
[Anonymous], 2009, Obstet Gynecol, V114, P386, DOI 10.1097/AOG.0b013e3181b48ef5
[4]
Caughey Aaron B, 2009, Evid Rep Technol Assess (Full Rep), P1
[6]
Cunningham FG, 2014, WILLIAMS OBSTET, P523