老年患者X线胸片未显示气管、支气管病变的纤支镜检查分析
노년환자X선흉편미현시기관、지기관병변적섬지경검사분석
Fiberoptic Bronchoscopy Analysis of Chest X-ray doing not show Lesions of Old Patients with Tracheal and Bronchial Disease
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