共 35 条
[22]
PENTECOST M P Jr, 1959, South Med J, V52, P190
[23]
ROBERTS DWT, 1961, J OBSTET GYN BR COMM, V68, P132
[25]
SOMMERS SC, 1957, CANCER-AM CANCER SOC, V10, P516, DOI 10.1002/1097-0142(195705/06)10:3<516::AID-CNCR2820100314>3.0.CO
[26]
2-6
[27]
THIEDE HA, 1962, OBSTET GYNECOL, V20, P149
[28]
TWOMBLY G H, 1962, N Y State J Med, V62, P2194
[30]
VANSMITH G, 1941, NEW ENGL J MED, V225, P608