Video-polysomnographic findings after acute COVID-19: REM sleep without atonia as sign of CNS pathology? - Heidbreder, Anna; Sonnweber, Thomas; Stefani, Ambra; Ibrahim, Abubaker; Cesari, Matteo; Bergmann, Melanie; Brandauer, Elisabeth; Tancevski, Ivan; Löffler-Ragg, Judith; Högl, Birgit (Sleep Medicine, 2021)