共 10 条
[2]
BURTON CA, 1989, OBSTET GYNECOL, V74, P707
[4]
DAVID WO, 2006, OBSTET GYN CLIN N AM, V33, P153
[6]
EXACOUSTOS C, 1993, OBSTET GYNECOL, V82, P97
[7]
GABBE SG, 2007, OBSTET NORMAL PROBLE, P58
[8]
KATZ VL, 1989, OBSTET GYNECOL, V73, P593
[10]
SAMPAZ E, 2003, J REPROD MED, V48, P950