Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico, USA

Correspondence to Lee K. Brown, MD, Professor of Medicine and Pediatrics, Vice Chair, Clinical Program Development, Department of Internal Medicine, University of New Mexico School of Medicine, Executive Director, Program in Sleep Medicine, University of New Mexico Health Sciences Center, 1101 Medical Arts Avenue NE, Building #2, Albuquerque, NM 87102, USA Tel: +1 505 272 6110; fax: +1 505 272 6112; e-mail: [email protected]