共 16 条
[1]
[Anonymous], 1960, BMJ-BRIT MED J, V2, P1665
[2]
ATKINS E, 1981, PROSPECTIVE LONGITUD, P25
[3]
BANKS HS, 1949, COMMON INFECTIOUS DI, P150
[6]
DOUGLAS JWB, 1966, BRIT J PREV SOC MED, V20, P1
[7]
Felton Harriet M., 1944, JOUR AMER MED ASSOC, V126, P294
[9]
JAMES U, 1956, QJ MED, V97, P121
[10]
JOHNSTON IDA, 1983, LANCET, V2, P1104