[1] Department of Pediatric Surgery,
[2] Graduate School of Medicine,undefined
[3] Chiba University,undefined
[4] Chiba,undefined
[5] Japan,undefined
[6] ,undefined
[7] Japanese Study Group for Pediatric Liver Tumor (JPLT),undefined
[8] Japan,undefined
[9] Department of Pediatric Surgery,undefined
[10] Graduate School of Medicine,undefined
[11] Chiba University,undefined
[12] 1-8-1 Inohana,undefined
[13] Chuo-ku,undefined
[14] 260-8677,undefined
[15] Chiba,undefined
[16] Japan,undefined