[How many first graders in Basle have caries-free teeth in 1972?].
D002648:Child; D003731:Dental Caries / Q000453:epidemiology*; D003753:Dental Health Surveys; D006801:Humans; D012571:School Dentistry; D013557:Switzerland; D014094:Tooth, Deciduous
Wie viele Basler Schulanfänger haben im Jahre 1972 kariesfreie Gebisse.