慢性阻塞性肺疾病合并Ⅱ型呼吸衰竭并发上消化道出血的诱发因素分析
만성조새성폐질병합병Ⅱ형호흡쇠갈병발상소화도출혈적유발인소분석
Predisposing factors analysis of chronic obstructive pulmonary disease with type Ⅱ respiratory failure complicated by upper gastrointestinal bleeding
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