Sleep Medicine Pearls (Third Edition)2015, Pages 80-87IntroductionAuthor links open overlay panelRichard B. Berry MD, Mary H. Wagner MDShow moreOutlineShareCitehttps://doi.org/10.1016/B978-1-4557-7051-9.00009-7Get rights and contentFirst page previewClick to open first page previewView PDFRecommended articlesReferences (0)Cited by (0)View full textCopyright © 2015 Elsevier Inc. All rights reserved.