共 19 条
[1]
ASHTON WA, 1976, LANCET, V2, P657
[3]
BIJKERK H, 1980, BRIT J VENER DIS, V56, P243
[4]
CARAWAY C, 1980, MORBIDITY MORTALITY, V29, P241
[5]
FINN MD, 1980, MORBID MORTAL WEEKLY, V29, P541
[6]
JAFEE HW, 1981, J INFECT DIS, V144, P191
[7]
JEPHCOTT AE, 1981, LANCET, V2, P247
[9]
JOHNSTON NA, 1981, LANCET, V1, P445
[10]
NAYYAR KC, 1980, BRIT J VENER DIS, V56, P249