title: Surgery residents and volunteerism.
authors.affiliation: University of Nebraska Medical Center, Omaha, NE, USA.
authors.forename: John M
authors.initials: JM
authors.lastname: Karamichalis
authors.forename: Mecker G
authors.initials: MG
authors.lastname: Möller
mesh_terms: D013502:General Surgery; D006801:Humans; D007396:Internship and Residency; D014838:Volunteers