共 7 条
[1]
JONES HW, 1982, NOVAKS TXB GYNECOLOG, P439
[2]
MOORE JG, 1986, GYNECOL OBSTET, V1, P5
[4]
Noia G, 1983, Minerva Ginecol, V35, P1
[5]
Pritchard JA, 1985, WILLIAMS OBSTETRICS, P689
[6]
VONMICKEY LI, 1977, ULTRASONOGRAPHY OBST, P297
[7]
WINERMURAM HT, 1983, CAN MED ASSOC J, V128, P949