Microbiome in Pulmonary Tuberculosis, Non-tuberculous Mycobacterial Pulmonary Diseases, Lung Cancer and Hemoptysis

Inclusion Criteria: * Patients who underwent bronchoscopy for hemoptysis, OR * Patients who underwent bronchoscopy for suspicious endobronchial pulmonary tuberculosis observed on chest computed tomography, OR * Patients who underwent bronchoscopy for suspicious non-tuberculous mycobacterial pulmonary disease (NTM-PD) observed on chest computed tomography, OR * Patients who underwent bronchoscopy for suspicious endobronchial lung cancer observed on chest computed tomography, OR * Patients who underwent bronchoscopy to rule out endobronchial lesion which did not seem to be typical for any criteria of pulmonary diseases including tuberculosis, NTM-PD or lung cancer on chest computed tomography Exclusion Criteria: * Other malignancy, infection or serious diseases of neural, cardiovascular, renal, hepatobiliary, gastrointestinal, hemotologic or respiratory system * Use of any antibiotic within a month * Vulnerable volunteer * Subject's rejection