CRP and acute pyelonephritis: 12 Won Yang Won Yang J J Cho Cho IR IR Seong Seong DH DH Clinical implication of serum C-reactive Protein in patients with uncomplicated acute pyelonephritis as marker of prolonged hospitalization and Recurrence Clinical implication of serum C-reactive Protein in patients with uncomplicated acute pyelonephritis as marker of prolonged hospitalization and Recurrence Urology.