title: Safety culture: is the "unit" the right "unit of analysis"?
authors.forename: David M
authors.initials: DM
authors.lastname: Gaba
authors.forename: Sara J
authors.initials: SJ
authors.lastname: Singer
authors.forename: Amy K
authors.initials: AK
authors.lastname: Rosen
mesh_terms: D001291:Attitude of Health Personnel; D003422:Critical Care / Q000458:organization & administration*; D006801:Humans; D007362:Intensive Care Units / Q000458:organization & administration*; D015279:Organizational Culture; D017063:Outcome Assessment, Health Care; D010564:Personnel, Hospital / Q000523:psychology; D012107:Research Design; D017751:Safety Management / Q000458:organization & administration*