Aggerholm-Pedersen, Ninna, Katja Maretty-Nielsen, Johnny Keller, Steen Baerentzen, Henrik Schrøder, Peter Holmberg Jørgensen, Bjarne Hauge Hansen, Ole Steen Nielsen, and Akmal Safwat. 2015. “The Importance of Standardized Treatment in High-Grade Osteosarcoma: 30 Years of Experience from a Hospital-Based Database”. Acta Oncologica 54 (1):17-24. https://doi.org/10.3109/0284186X.2014.925139.