Presented by Go Miyano, MD during the 2013 IPEG Annual Meeting. S029 RETROPERITONEOSCOPIC NEPHRECTOMY AND HEMINEPHRECTOMY IN CHILDREN PLANNED, PERFORMED, AND MANAGED BY SENIOR PEDIATRIC SURGICAL TRAINEES Go Miyano, MD, Hiroyuki Koga, MD, Manabu Okawada, MD, Takashi Doi, MD, Geoffrey J Lane, MD, Yoshifumi Kato, MD, Tadaharu Okazaki, MD, Atsuyuki Yamataka, MD, PhD, Department of Pediatric General & Urogenital Surgery, Juntendo University School of Medicine