共 36 条
[31]
Westrom L, 1992, Lakartidningen, V89, P1460
[34]
WOODRUFF JD, 1985, CLIN OBSTET GYNECOL, V28, P134
[35]
WOODRUFF JD, 1983, OBSTET GYNECOL, V62, P609
[36]
WOODRUFF JD, 1981, OBSTET GYNECOL, V57, P750