共 11 条
[2]
ELMINAWI F, 1971, AM J OBSTET GYNECOL, V109, P389
[4]
GREISS FC, 1963, OBSTET GYNECOL, V21, P295
[8]
SPRAGUE AD, 1972, OBSTET GYNECOL, V39, P887
[10]
van Hall E V, 1965, Ned Tijdschr Geneeskd, V109, P2235