[Absenteeism of school children].
D000041:Absenteeism; D002648:Child; D003141:Communicable Diseases / Q000453:epidemiology; D003604:Czechoslovakia; D006801:Humans; D009017:Morbidity; D012572:School Health Services; D012621:Seasons; D012924:Social Conditions
Absentizmus skolopovinnej mládeze.