Carlo A. Marra

The impact of obstructive sleep apnea and daytime sleepiness on work limitation.

J. Fleetham, N. Ayas, M. Koehoorn, 2007, Sleep medicine.

Cost-effectiveness of continuous positive airway pressure therapy for moderate to severe obstructive sleep apnea/hypopnea.

J. Fleetham, D. White, N. Ayas, 2006, Archives of internal medicine.