Treatment Results in Children and Adolescents with loco-regional Recurrences of abdominal Germ Cell Tumors (GCTs): A Pilot-Study with PEI Chemotherapy and regional deep Hyperthermia (RHT) in Comparison to a matched Cohort* - Wessalowski, R; Blohm, M; Calaminus, Gabriele; Engert, J; Harms, D; Krause, Ingrid; Kruck, Heidi; Grüttner, H -P; Pape, Hildegard; Göbel, U (Klinische Pädiatrie, 1997)