RT Journal Article SR Electronic T1 To sleep, or not to sleep – that is the question, for polysomnography JF Breathe JO Breathe FD European Respiratory Society SP 137 OP 140 DO 10.1183/20734735.007717 VO 13 IS 2 A1 Alexandru Corlateanu A1 Serghei Covantev A1 Victor Botnaru A1 Victoria Sircu A1 Raffaella Nenna YR 2017 UL http://breathe.ersjournals.com/content/13/2/137.abstract AB