Rühle, K H [A simple microphone screening method for the detection of patients with sleep apnea syndrome]. [electronic resource] - Praxis und Klinik der Pneumologie Oct 1987 - 370-4 p. digital Publication Type: English Abstract; Journal Article ISSN: 0342-7498 Subjects--Topical Terms: AdultCarbon Dioxide--bloodHumansMonitoring, Physiologic--instrumentationOxygen--bloodRespiratory Sounds--diagnosisSleep Apnea Syndromes--diagnosis