共 24 条
[2]
BERGAN T, 1973, ACTA PATH MICRO IM B, VB 81, P70
[4]
BRANNAN EA, 1965, AM J PUBLIC HEALTH, V55, P915
[5]
BRUUN J N, 1971, Scandinavian Journal of Infectious Diseases, V3, P235, DOI 10.3109/inf.1971.3.issue-3.10
[9]
FALCAO DP, 1972, LANCET, V11, P38