共 28 条
[2]
AZZIZ R, 1989, OBSTET GYN CLIN N AM, V16, P221
[4]
Bromley B, 2000, J ULTRAS MED, V19, P529
[5]
Chan C L, 2001, Med J Malaysia, V56, P370
[6]
Chen Chunlin, 2002, Zhonghua Fu Chan Ke Za Zhi, V37, P77
[7]
Chung Y P, 1997, J Obstet Gynaecol Res, V23, P69