共 25 条
[21]
WEISSMAN JB, 1975, AM J EPIDEMIOL, V100, P487
[22]
ZINNAKA Y, 1972, JOHNS HOPKINS MED J, V131, P403
[23]
ZINNAKA Y, 1974, 9TH P JT CHOL RES C, P61
[24]
1979, MORBID MORTAL WEEKLY, V28, P571
[25]
1911, PUBLIC HLTH REP, V26, P1133