共 7 条
[1]
GANT NF, 1974, AM J OBSTET GYNECOL, V120, P1
[2]
GUSDON JP, 1977, AM J OBSTET GYNECOL, V127, P1
[3]
Hughes EC, 1972, OBSTET GYNECOLOGIC T, P422
[5]
PECK TM, 1977, OBSTET GYNECOL, V50, P615