title: [Does every 3d patient with essential hypertension have an undiagnosed sleep apnea syndrome?].
mesh_terms: D000328:Adult; D001794:Blood Pressure; D003131:Combined Modality Therapy; D006801:Humans; D006973:Hypertension / Q000150:complications* / Q000188:drug therapy / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009543:Nifedipine / Q000627:therapeutic use; D012119:Respiration; D012890:Sleep / Q000502:physiology; D012891:Sleep Apnea Syndromes / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy
chemical_list: D009543:Nifedipine
vernacular_title: Hat jeder dritte Patient mit essentieller Hypertonie ein undiagnostiziertes Schlafapnoe-Syndrom?