共 54 条
[1]
ABERG A, 1984, MAY INT WORKSH TWIN
[2]
ACKER D, 1982, OBSTET GYNECOL, V59, P710
[3]
[Anonymous], 1981, AM J OBSTET GYNECOL, V141, P276
[6]
CETRULO C L, 1980, Clinical Obstetrics and Gynecology, V23, P533, DOI 10.1097/00003081-198006000-00022
[7]
CETRULO CL, UNPUB PROPHYLACTIC B
[8]
CHERVENAK FA, 1984, J REPROD MED, V29, P727
[9]
CHERVENAK FA, 1983, OBSTET GYNECOL, V62, P160
[10]
CHERVENAK FA, 1984, AM J OBSTET GYNECOL, V148, P1