共 12 条
[2]
BERMAN S, 1985, REV INFECT DIS, V7, P674
[6]
HOSKING G, 1986, LANCET, V2, P164
[7]
HOWIE JGR, 1983, SCAND J INFECT DIS, P68
[9]
LIU Y, 1993, CHIN J EPIDEMIOL, V14, P134
[10]
Shen X, 1991, CHIN J INFECT DIS, V9, P230