Medical University Pleven, Pleven, Bulgaria
National Center of Haematology, Sofia, Bulgaria
Medical University, University Hospital "Sveta Marina",, Varna, Bulgaria
404, Bridgeport, Connecticut, United States
407, Florence, Alabama, United States
320, 322, 323, Pasadena, California, United States
Kenmar Research Institute, LLC, Los Angeles, California, United States
Western Pennsylvannia Hospital, Pittsburgh, Pennsylvania, United States
Arizona Oncology Associates, Tucson, Arizona, United States
Oddzial Chorob Wewnetrznych i Hematologii, Poznan, Szkolna, Poland
Katedra i Klinika Hematologii Collegium Medicum UJ, Krakow, Poland