共 6 条
[1]
BYRD J, 1979, AM J PUBLIC HEALTH, V2, P209
[2]
GLANTZ S, 1991, CIRCULATION, V347, P1
[3]
Miles R.H., 1982, COFFIN NAILS CORPORA
[4]
NEUSPIEL D, 1989, AM J PUBLIC HEALTH, V79, P2168
[5]
1964, PHS PUBLICATION, V1103
[6]
1986, US PHS DHS CDC878398