title: [Value of questionnaires as a method of learning about morbidity in a population].
mesh_terms: D005260:Female; D005859:Germany, East; D006306:Health Surveys / Q000379:methods*; D006801:Humans; D008297:Male; D009017:Morbidity; D011795:Surveys and Questionnaires
vernacular_title: Beitrag zur Wertigkeit der Befragung als Methode zur Morbitätsermittlung in einer Population