Sleep assessment in a population-based study of chronic fatigue syndrome

Elizabeth R Unger¹ , Rosane Nisenbaum¹ , Harvey Moldofsky² , Angela Cesta² , Christopher Sammut² , Michele Reyes¹ and William C Reeves¹

¹Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA

²Sleep Disorders Clinic of the Centre for Sleep and Chronobiology, Toronto, Ontario, Canada