title: Even small groups may need a fill-in doctor.
authors.forename: S
authors.initials: S
authors.lastname: Cejka
mesh_terms: D000041:Absenteeism; D003284:Contract Services; D006801:Humans; D008007:Licensure, Medical; D010561:Personnel Staffing and Scheduling; D010820:Physicians / Q000600:supply & distribution*; D014481:United States