[1] Semmelweis Univ, Clin Neurosci, Szentagothai Janos Sch PhD Studies, Budapest, Hungary
[2] Semmelweis Univ, Natl Inst Clin Neurosci, Dept Behav Sci, Budapest, Hungary
[3] Univ Hosp Parma, Sleep Disorders Ctr, Dept Med & Surg, Via Gramsci 14, I-43126 Parma, Italy