Correction: SIOP-E-BTG and GPOH Guidelines for Diagnosis and Treatment of Children and Adolescents with Low Grade Glioma - Gnekow, Astrid K.; Kandels, Daniela; Tilburg, Cornelis van; Azizi, Amedeo A.; Opocher, Enrico; Stokland, Tore; Driever, Pablo Hernaiz; Meeteren, A. Y. N. Schouten-van; Thomale, Ulrich W.; Schuhmann, Martin U.; Czech, Thomas; Goodden, John Robert; Warmuth-Metz, Monika; Bison, Brigitte; Avula, Shivaram; Kortmann, Rolf-D.; Timmermann, Beate; Pietsch, Torsten; Witt, Olaf (Klinische Pädiatrie, 2019)