共 7 条
[3]
MATTHEWS AEB, 1961, J OBSTET GYN BR COMM, V68, P834
[4]
NAFTOLIN F, 1965, OBSTET GYNECOL, V26, P561
[5]
POTTER EL, 1962, PATHOLOGY FETUS INFA, P24
[6]
RANNENBERG E, 1924, ZBL GYNAKOL, V48, P30
[7]
WENTWORTH P, 1965, J ANAT, V99, P273