Director
Sleep Disorders Center
Department of Neurology
Middlesex Hospital
Middletown
CT
AA declares that he has no competing interests.
Dr Ashish Adlakha would like to gratefully acknowledge Dr Sudhansu Chokroverty, a previous contributor to this topic.
Associate Director
Johns Hopkins Sleep Disorders Center
Baltimore
MD
DNN has received consulting fees and honoraria for speaking programs from Sanofi-Aventis and Takeda Pharmaceuticals. These companies manufacture medications mentioned in this topic.
Emeritus Fellow
UK Cochrane Centre
Oxford
UK
AH is an author of a number of references cited in this topic.
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