Compensatory Renal Growth in Children with Unilateral Renal Tumor Treated by Nephron-Sparing Surgery or Nephrectomy - Cozzi, F; Zani, A; Schiavetti, A; Morini, F; deGaetano, V; Matrunola, M; Cozzi, D A (European Journal of Pediatric Surgery, 2007)