AbstractGet full access to this articleView all access options for this article.Get accessReferences1. Lm L , Faraco J , Li R , Kadotam H , Rogers W , Lm X , Qiu X , de Jong PJ , Nishmo S , Mignot E The sleep disorder canine narcolepsy is caused by a mutation in the hyporetin (orexm) receptor 2 gene. Cell 1999;98.365-76.