bronchoscopy abnormal pigmentation of mucosal surface of left lower lobe superior segmental bronchus
bronchoscopy abnormal pigmentation of mucosal surface of left lower lobe superior segmental bronchus
bronchoscopy abnormal pigmentation of mucosal surface of left lower lobe superior segmental bronchus (procedure)
bronchoscopy abnormal pigmentation of mucosal surface of left lower lobe superior segmental bronchus (procedure)