共 29 条
[2]
AUGUST RV, 1955, OBSTET GYNECOL, V5, P715
[4]
BOULWARE TM, 1954, AM J OBSTET GYNECOL, V68, P1124
[9]
DONNELLY JF, 1953, B AM COLL SURG, V38, P97
[10]
GARB A E, 1957, Obstet Gynecol Surv, V12, P291, DOI 10.1097/00006254-195712030-00001