共 28 条
[2]
ALBERTI A, 1978, GASTROENTEROLOGY, V75, P869
[4]
ARMITAGE P, 1978, STATISTICAL METHODS, P189
[7]
HEPATITIS-B SURFACE-ANTIGEN (HBSAG) AND ANTIBODY TO HBSAG - PREVALENCE IN HOMOSEXUAL AND HETEROSEXUAL MEN
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1977, 238 (24)
:2625-2626
[8]
FEINMAN SV, 1979, GASTROENTEROLOGY, V76, P1280
[9]
FROSNER GG, 1975, AM J EPIDEMIOL, V102, P241
[10]
FULFORD KWM, 1973, LANCET, V1, P1470