title: [Listening at Tosca on the balcony. The secret of heavenly sound--a randomized, cross-sectional study].
authors.affiliation: HUS, Töölön sairaala, käsikirurgian klinikka PL 266, 00029 HUS.
authors.forename: Outi
authors.initials: O
authors.lastname: Nieminen
authors.forename: Heikki
authors.initials: H
authors.lastname: Mäkisalo
authors.forename: Martti
authors.initials: M
authors.lastname: Vaara
mesh_terms: D003430:Cross-Sectional Studies; D004864:Equipment and Supplies / Q000382:microbiology*; D006801:Humans; D009146:Music; D009790:Occupations; D011549:Pseudomonas / Q000302:isolation & purification*