Absence from school; its relationship to illness in the community.
D006801:Humans; D015141:Los Angeles; D012111:Residence Characteristics; D012572:School Health Services; D012574:Schools
SCHOOL HEALTH
Public Health Rep. 1950 Dec 29;65(52):1737-44
14781326
J Hyg (Lond). 1951 Dec;49(4):365-81
14908046
Am J Hyg. 1953 Jul;58(1):16-30
13065268