共 43 条
[1]
ABERG A, 1978, LANCET, V2, P990
[4]
BERKOWITZ RL, 1990, OBSTET GYNECOL, V75, P873
[5]
BRONSHTEIN M, 1991, TRANSVAGINAL SONOGRA, P327
[6]
BRONSTEEN RA, 1989, FETAL DIAGN THER, P242
[7]
Cahill Lisa Sowle, 1987, America (NY), V156, P246
[8]
CHITKARA U, 1989, OBSTET GYNECOL, V73, P690
[9]
DRUGAN A, 1992, REPRODUCTIVE RISK PR, P3
[10]
Dumez Y, 1986, Contrib Gynecol Obstet, V15, P50