1. Lung Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
2. Transplant Research Center, Clinical Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
3. Clinical Research Development Unit, Faculty of Medicine, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
4. Department of Infectious Diseases and Tropical Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
5. Surgical Oncology Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran