VALVERDE, A [VESICO-URETERAL REFLUX, AN IMPORTANT FACTOR IN THE APPEARANCE AND CONTINUATION OF CHRONIC PYELONEPHRITIS]. [electronic resource] - Archivos espanoles de urologia - 201-22 p. digital Publication Type: Journal Article ISSN: 0004-0614 Subjects--Topical Terms: ChildChronic DiseaseDiagnosisHumansPyelonephritisSurgical Procedures, OperativeUrographyVesico-Ureteral Reflux