Reference:
Chellali, A., Sankaranarayanan, G., Zhang, L., Cao, C. G. L., De, S., Jones, D. B., and Schneider, B. (2013). Effects of Sleep hours and Fatigue on Performance in Laparoscopic Surgery Simulators..
Proceedings of the 2013 Annual Meeting of the Society of American Gastrointestinal Surgeons (SAGES). Baltimore, MD.