@article{KandelsPietschBisonetal.2020,
  author    = {Daniela Kandels and Torsten Pietsch and Brigitte Bison and Monika Warmuth-Metz and Ulrich-Wilhelm Thomale and Rolf-Dieter Kortmann and Beate Timmermann and Pablo Hern{\´a}iz Driever and Olaf Witt and Ren{\´e} Schmidt and Astrid K. Gnekow},
  title     = {Loss of efficacy of subsequent nonsurgical therapy after primary treatment failure in pediatric low-grade glioma patients—Report from the German SIOP-LGG 2004 cohort},
  journal   = {International Journal of Cancer},
  volume    = {147},
  number    = {12},
  pages     = {3471 -- 3489},
  doi       = {10.1002/ijc.33170},
  year      = {2020},
}