[Free visiting time and public health problems].
D000328:Adult; D002648:Child; D002673:Child, Hospitalized / Q000523:psychology; D003140:Communicable Disease Control / Q000379:methods*; D005859:Germany, East; D006801:Humans; D014789:Visitors to Patients / Q000523:psychology
Zur freien Besuchszeit und einigen ihrer hygienischen Probleme.