Work Schedule TolerancePersonnel Staffing and SchedulingWomen, WorkingSleep Disorders, Circadian RhythmWorkHospital Bed Capacity, 100 to 299Drug ToleranceReinforcement ScheduleWorkloadChild CareOccupational HealthImmune ToleranceSleepSleep DeprivationCircadian RhythmEmploymentOccupational DiseasesFatigueAccidents, OccupationalTime FactorsDrug Administration ScheduleGlucose Tolerance TestQuestionnairesStress, PsychologicalColumbidaeTransplantation ToleranceImmunization ScheduleUnited StatesFee SchedulesReinforcement (Psychology)Conditioning, OperantDose-Response Relationship, Drug