Affiliation: | 1.Master Program in Sleep Medicine, Medical School, Democritus University of Thrace, Alexandroupoli, Greece ;2.Pulmonary Clinic, NHS General Hosp. “G. Papanikolaou”, Thessaloniki, Greece ;3.Neurology Clinic, Aristotle University of Thessaloniki, General Hosp. “G. Papanikolaou”, Thessaloniki, Greece ;4.Pulmonary Clinic, Aristotle University of Thessaloniki, General Hosp. “G. Papanikolaou”, Thessaloniki, Greece ; |