共 12 条
[1]
ALI V, 1981, SO MED J, V74, P478
[3]
BEACHAM WD, 1962, AM J OBSTET GYNECOL, V84, P1257
[8]
KOBAYASHI M, 1980, ILLUSTRATED MANUAL U, P174
[9]
MCELIN TW, 1977, TXB OBSTETRICS GYNEC, P352