共 7 条
[3]
MAJOR FJ, 1974, OBSTET GYNECOL, V32, P748
[4]
OLSSON CA, 1979, NEW ENGL J MED, V301, P1228
[5]
Shah M S, 1974, Urology, V3, P770, DOI 10.1016/S0090-4295(74)80223-2
[6]
SHEMWELL RE, 1970, OBSTET GYNECOL, V36, P299
[7]
SYMMONDS RE, 1979, OBSTET GYNECOL, V54, P174