共 12 条
[1]
ACHIRON R, 1991, OBSTET GYNECOL, V78, P330
[2]
CASHNER KA, 1987, OBSTET GYNECOL, V70, P827
[3]
CHRISTIAENS GCML, 1984, LANCET, V2, P571
[4]
GILMORE DH, 1985, LANCET, V1, P107
[5]
JARJOUR L, 1991, FERTIL STERIL, V56, P202
[6]
MACKENZIE WE, 1988, OBSTET GYNECOL, V71, P81
[8]
DIAGNOSIS OF EARLY-PREGNANCY FAILURE BY SONAR
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1975, 82 (11)
:849-857
[9]
ROSEN GF, 1990, FERTIL STERIL, V54, P260
[10]
LOW FETAL LOSS RATES AFTER ULTRASOUND-PROVED VIABILITY IN EARLY-PREGNANCY
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1987, 258 (18)
:2555-2557