Assertion: complicated pyelonephritis | /r/HasProperty | infant
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Source sentences:
text: Complicated pyelonephritis is an infection of the upper urinary tract in the following populations: infants, patients older than 60 years, patients with anatomical abnormalities (single kidney, polycystic kidney disease, vesicoureteral reflux, renal stone, urinary/ureteral/nephrostomy catheter presence), those with impaired renal function, the immunocompromised (diabetes, sickle cell, transplantation, cancer, chemotherapy, HIV, chronic steroid use), males, pregnant patients, or those with a known obstruction (BPH, renal stone, foreign body, neurogenic bladder).