共 56 条
[7]
BERRY SM, 1985, J ULTRAS MED, V4, P293
[8]
BROWN DL, 1991, OBSTET GYNECOL, V77, P406
[10]
DIAGNOSIS OF ECTOPIC PREGNANCY BY VAGINAL ULTRASONOGRAPHY IN COMBINATION WITH A DISCRIMINATORY SERUM HCG LEVEL OF 1000-IU/1 (IRP)
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1990, 97 (10)
:904-908