共 19 条
[1]
BERGE JO, 1975, DHEW CDC758301 PUBL
[3]
CALISHER CH, 1973, ACTA VIROL, V17, P261
[4]
CALISHER CH, 1975, J CLIN MICROBIOL, V2, P198
[7]
CASEY HL, 1965, PUBLIC HLTH MONOGR, V74, P31
[9]
FRANCY DB, UNPUB
[10]
GUTIERREZV E, 1975, AM J EPIDEMIOL, V102, P400