Automatic slow eye movement (SEM) detection of sleep onset in patients with obstructive sleep apnea syndrome (OSAS): Comparison between multiple sleep latency test (MSLT) and maintenance of wakefulness test (MWT) - Fabbri M; Pizza F; Magosso E; Ursino M; Contardi S; Cirignotta F; Provini F; Montagna P (Sleep Medicine, 2010)