Widhe, Björn, and Henrik C. F. Bauer. 2011. “Diagnostic Difficulties and Delays With Chest Wall Chondrosarcoma: A Swedish Population Based Scandinavian Sarcoma Group Study of 106 Patients”. Acta Oncologica 50 (3):435-40. https://doi.org/10.3109/0284186X.2010.486797.