Long-Term Follow-Up in Childhood Cancer Survivors – Position paper 2018 of the working group “long-term follow-up” of the Society of Pediatric Oncology and Hematology (GPOH) on long-term surveillance, long-term follow-up and late effect evaluation in pediatric oncology patients - Langer, T; Grabow, D; Kaatsch, P (Klin Paediatr, 2018)