Authors
Aseih Hatefi Olaee
Internal Medicine Department, pulmonary ward, Fellowship of Gastroentestinal disease, Mashhad University of Medical sciences, Mashhad
Fariba Rezaeetalab
Internal Medicine Department, pulmonary ward, Lung Diseases Research Center, Mashhad University of Medical sciences, Mashhad
Nasim Lotfinejad
Department of Research, Faculty of Medicine, Mashhad University of Medical sciences, Mashhad