Evaluation of DAP Values Obtained from Chest X-rays in Children under 12 Years of Age Referred to Educational Hospitals of Birjand University of Medical Sciences in 2020 - Ghayour-Saffar, Nazanin; Ehsanbakhsh, Alireza; Keshtkar, Mohammad; Pandesh, Sajjad (Frontiers in Biomedical Technologies, 2022)