title: Fixed vs. formed aircrews and safety.
authors.forename: T J
authors.initials: TJ
authors.lastname: Ungs
mesh_terms: D000060:Accidents, Aviation; D000337:Aerospace Medicine; D006801:Humans; D008889:Military Personnel; D015588:Observer Variation; D016272:Occupational Health; D010561:Personnel Staffing and Scheduling