Task: Answer Verification
Input (English): Question: Are post-pyelonephritic renal scars associated with vesicoureteral reflux in children?
Answer: Renal scars after first pyelonephritis are in most cases not associated with abnormalities of the urinary tract, but are caused by the infection itself. However, structural abnormalities may predispose to recurrent infections. Following pyelonephritis new renal scars may develop in all age groups in both sexes.
Output (English): no