共 51 条
[11]
BRONSHTEIN, 1991, PRENAT DIAGN, V12, P587
[14]
BUTCHER HC, 1993, BRIT MED J, V307, P13
[16]
CULLEN MT, 1989, J ULTRAS MED, V8, P565
[18]
First trimester ultrasonographic diagnosis of fetal structural abnormalities in a low risk population
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1998, 105 (01)
:53-57
[19]
First trimester sonographic detection of chromosomal abnormalities in an unselected population
[J].
BRITISH JOURNAL OF OBSTETRICS AND GYNAECOLOGY,
1998, 105 (01)
:58-62