title: [A contagious opera fever].
authors.forename: Luise
authors.initials: L
authors.lastname: Hess
mesh_terms: D005858:Germany; D006801:Humans; D007899:Leisure Activities; D009042:Motivation; D009146:Music; D010559:Personnel Management; D010817:Physician-Patient Relations; D010824:Physicians' Offices