%0 Letter %T Nephron-Sparing Surgery in Pediatric Renal Tumors Arising From a Horseshoe Kidney: Proposal of a Lacking Definition. %A Rollo G %A Zarfati A %A Martucci C %A Crocoli A %A Serra A %A Inserra A %J J Pediatr Surg %V 59 %N 7 %D 2024 Jul 20 %M 38614950 %F 2.549 %R 10.1016/j.jpedsurg.2024.03.035