1. Shift length and on-duty rest patterns in rotor wing air medical programs;Frakes;Air Med J,2004
2. Fatigue in anesthesia;Howard;Anesthesiology,2002
3. Circadian rhythms in fatigue, alertness, and performance;Van Dongen,2000
4. Flight crew fatigue IV: Overnight cargo operations;Gander;Aviat Space Environ Med,1998
5. Shift work;Monk,2000