共 16 条
[3]
BUMP RC, 1986, PEDIATRICS, V77, P488
[4]
COX DR, 1972, J R STAT SOC B, V34, P187
[6]
HOROWITZ BJ, 1987, OBSTET GYNECOL, V69, P883
[7]
KING A, 1964, VENEREAL DISEASES
[8]
KINGHORN GR, 1981, BRIT J VENER DIS, V57, P187