1. Medical Oncology Department Hospital Universitario Fundación Jimenez Diaz Madrid Spain
2. County Oncology Centre Hetenyi Geza Korhaz Szolnok Hungary
3. Institute of Clinical Medicine, Department of Hematology and Oncology University of Tartu Tartu Estonia
4. Chemotherapy and Haematology Clinic Riga East Clinical University‐Latvian Oncology Center Riga Latvia
5. Department of Medical Oncology Complex Oncology Center Burgas Bulgaria
6. Clinic for Medical Oncology Institute for Oncology and Radiology of Serbia Belgrade Serbia
7. Clinical Development G1 Therapeutics, Inc. Research Triangle Park North Carolina USA
8. Division of Oncology, Saint Luke's Cancer Institute University of Missouri Kansas City Missouri USA