TY - CHAP M1 - Book, Section TI - Vesicoureteral Reflux A1 - Gaither, Thomas W. A1 - Copp, Hillary L. A2 - McAninch, Jack W. A2 - Lue, Tom F. Y1 - 2020 N1 - T2 - Smith & Tanagho's General Urology, 19e AB - Under normal circumstances, the ureterovesical junction allows urine to enter the bladder but prevents urine from regurgitating into the ureter, particularly at the time of voiding. In this way, the kidney is protected from high pressure in the bladder and from contamination by infected vesical urine. When this valve is incompetent, the chance for development of urinary infection is significantly enhanced, and pyelonephritis may occur. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/24 UR - accesssurgery.mhmedical.com/content.aspx?aid=1171178976 ER -