Age, gender, neck circumference, and Epworth sleepiness scale do not predict obstructive sleep apnea (OSA) in moderate to severe chronic obstructive pulmonary disease (COPD): The c... by Xavier Soler, Shu-Yi Liao, Jose Maria Marin, Geraldo Lorenzi-Filho, Rachel Jen, Pamela DeYoung, Robert L Owens, Andrew L Ries, Atul Malhotra

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