[Comparative epidemiologic study of 525 students in the 4th class in 2 areas of Hamburg].
D002648:Child; D005260:Female; D005860:Germany, West; D006305:Health Status Indicators; D006306:Health Surveys; D006801:Humans; D012931:Social Environment; D013334:Students; D014505:Urban Population
Vergleichende epidemiologische Studie über 525 Viertklassler aus 2 Stadtteilen Hamburgs.