共 22 条
[1]
Ballantyne JW, 1922, J OBSTET GYNAECOL BR, V29, P177
[3]
BERKOWITZ RL, 1977, OBSTET GYNECOL, V49, P156
[4]
CALLENBACH JC, 1979, OBSTET GYNECOL, V53, P721
[8]
GOEBELSMANN U, 1979, CLIN OBSTET GYNAECOL, V6, P223
[9]
GREEN J, 1977, OBSTET GYNECOL, V51, P293
[10]
KLAPHOLZ H, 1977, AM J OBSTET GYNECOL, V127, P405