Ahn [one] reviewed the Sophisticated diagnostic function of bronchoscopy. Flexible bronchoscopy is an important diagnostic Resource within the scientific field of respiratory medicine. In the last ten years, endobronchial ultrasound (EBUS) has been launched in clinics. Convex probe-EBUS has long been accustomed to diagnose numerous central lung lesions and https://directivepublications.org/journal-of-respiratory-medicine-and-research/