共 22 条
[1]
ASKEW JB, 1972, PERSONAL COMMUNICATI
[2]
BIERSTEKER K, 1970, Archives of Environmental Health, V20, P382
[4]
COMSTOCK GW, IN PRESS
[5]
DOUGLAS JWB, 1966, BRIT J PREV SOC MED, V20, P1
[6]
EDWARDS LB, 1969, TUBERCULOSIS
[7]
PREVALENCE OF RESPIRATORY SYMPTOMS IN NORWAY
[J].
JOURNAL OF CHRONIC DISEASES,
1972, 25 (09)
:519-+
[8]
HOLLAND WW, 1965, LANCET, V1, P445
[10]
HOLLAND WW, 1969, BRIT J PREV SOC MED, V23, P77