共 23 条
[5]
FLEISCHER AC, 1991, J ULTRAS MED, V10, P563
[6]
FLEISCHER AC, 1993, J ULTRAS MED, V12, P41
[7]
GANBERG S, 1990, GYNECOL ONCOL, V37, P224
[8]
HATA K, 1992, OBSTET GYNECOL, V80, P922
[10]
Hirai T, 1993, Asia Oceania J Obstet Gynaecol, V19, P181