共 26 条
[2]
Aziz F A, 1980, Int J Gynaecol Obstet, V18, P144
[3]
BASKETT TF, 1977, CAN MED ASSOC J, V116, P1001
[4]
DUNCAN MJ, 1865, EDINBURGH MED J, V11, P201
[5]
EASTMAN NJ, 1940, NEW YORK J MED, V40, P1708
[7]
FUCHS K, 1961, OBSTET GYNECOL, V18, P719
[9]
KALTREIDER F, 1939, OBSTET GYNECOL, V13, P190