Influence of Tumor Site and Histology on Long-Term Survival in 193 Children with Extracranial Germ Cell Tumors - De Backer, A; Madern, G C; Pieters, R; Haentjens, P; Hakvoort-Cammel, F G A J; Oosterhuis, J W; Hazebroek, F W J (European Journal of Pediatric Surgery, 2008)