title: [Effectiveness of the influenza vaccination].
mesh_terms: D005860:Germany, West; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control*
chemical_list: D007252:Influenza Vaccines
vernacular_title: Beitrag zur Wirksamkeit der Grippeschutzimpfung