Arias-Carrión, O.; Drucker-Colín, R.; Murillo-Rodríguez, E. "Hypocretin (orexin) cell transplantation diminishes narcoleptic-like sleep behavior in rats." CNS Neurol. Disord. Drug Targets, 2011,11(7). The above-cited paper has been retracted from CNS & Neurological Disorders-Drug Targets at the request of the authors. The authors advised the Journal of their intention to perform additional experiments in order to strengthen their initial results, at which time an amended manuscript may be submitted.