1 Division of Surgical Oncology and Thoracic Surgery, Department of Surgery, Medical Faculty Mannheim of the University of Heidelberg, Mannheim, Germany.
2 Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
3 Center for Sarcoma and Bone Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.
4 Harvard Medical School, Boston, MA, USA.
5 Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Sklodowska-Curie Institute - Oncology Center, Warsaw, Poland.