bronchoscopy abnormal pigmentation of mucosal surface of left upper lobe anterior segmental bronchus
bronchoscopy abnormal pigmentation of mucosal surface of left upper lobe anterior segmental bronchus
bronchoscopy abnormal pigmentation of mucosal surface of left upper lobe anterior segmental bronchus (procedure)
bronchoscopy abnormal pigmentation of mucosal surface of left upper lobe anterior segmental bronchus (procedure)