Authors
1 Chronic Respiratory Diseases Research Center, National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
2 Tracheal Diseases Research Center, (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
3 Critical Care Quality Improvement Research Center, Shahid Modarres Hospital, Department of Anesthesiology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract
Keywords