title: Letter: Urinary reflux and chronic pyelonephritis.
mesh_terms: D001485:Basement Membrane / Q000503:physiopathology; D002908:Chronic Disease; D006801:Humans; D007671:Kidney Concentrating Ability; D007684:Kidney Tubules / Q000503:physiopathology; D011704:Pyelonephritis / Q000150:complications / Q000503:physiopathology*