Onkologische Welt, Table of Contents Onkologische Welt 2021; 12(04): 203DOI: 10.1055/a-1504-9834 Editorial Onkologische Welt Alexander Kretzschmar∗ Recommend Article Abstract Buy Article Full Text References Literatur 1 Johnson SB. et al Cancer misinformation and harmful information on Facebook and other social media: a brief report. J Natl Cancer Inst. Published online July 22, 2021