共 12 条
[1]
[Anonymous], 1978, Br J Obstet Gynaecol, V85 Suppl 2, P1
[3]
ELIAS S, 1992, GENETIC DISORDERS FE, P33
[4]
Harlap S, 1980, HUMAN EMBRYONIC FETA, P145
[7]
PHILLIPS OP, 1992, OBSTET GYNECOL, V80, P353
[9]
SIMPSON NE, 1976, CAN MED ASSOC J, V15, P739
[10]
STEIN Z, 1980, HUMAN EMBRYONIC FETA, P107