Bacterial Agents and Antibiotic Resistance Profile in Pyelonephritis; A Comparison between Children with and without Urinary Tract Abnormalities in the North of Iran - Sorkhi, Hadi; Esmaeilzadeh, Niloofar; Hajiahmadi, Mahmood; Hendizadeh, Peyman; Pournajaf, Abazar; Mohammadi, Mohsen (Journal of Medical Bacteriology, 2023)