title: Portable recording to assess the severity of obstructive sleep apnea: a European perspective.
authors.forename: T
authors.initials: T
authors.lastname: Penzel
mesh_terms: D004867:Equipment Design; D005060:Europe; D006801:Humans; D012119:Respiration; D012720:Severity of Illness Index; D012891:Sleep Apnea Syndromes