共 21 条
[1]
ARMITAGE P, 1953, J OBSTET GYN BRIT EM, V60, P605
[3]
BEVIS DCA, 1953, J OBSTET GYN BRIT EM, V60, P244
[4]
BEVIS DCA, 1956, J OBSTET GYNAECOL, V63, P68
[5]
CHOWN B, 1958, Can Med Assoc J, V78, P252
[6]
FREDA V J, 1962, Bull Sloane Hosp Women Columbia Presbyt Med, V8, P147
[8]
KELSALL GA, 1959, MED J AUSTRALIA, V1, P488
[9]
LILEY AW, 1963, AM J OBSTET GYNECOL, V86, P485
[10]
LILEY AW, 1961, AM J OBSTET GYNECOL, V82, P1359