共 16 条
[1]
American College of Obstetricians and Gynecologists, 2003, Obstet Gynecol, V102, P1115
[2]
Brancazio LR, 2003, NEW ENGL J MED, V349, P1087
[4]
Gao FB, 1998, BIOESSAYS, V20, P70, DOI 10.1002/(SICI)1521-1878(199801)20:1<70::AID-BIES10>3.0.CO
[5]
2-5
[6]
Gao J, 1999, Zhonghua Fu Chan Ke Za Zhi, V34, P147
[8]
KELLY AJ, 2003, COCHRANE DB SYST REV
[9]
MATHIE JG, 1959, BMJ-BRIT MED J, V1, P1163