1. Cancer Research Institute; Biomedical Research Center SAS; Bratislava Slovakia
2. Institute of Geotechnics SAS; Košice Slovakia
3. Department of Medical Oncology; Jerome Lipper Multiple Myeloma Center; Dana Farber Cancer Institute; Boston MA USA
4. Department of Medicine; Harvard Medical School; Boston MA USA
5. Department of Hematology; VU University Medical Center; Amsterdam the Netherlands
6. Department of Pathology; Brigham and Women's Hospital; Boston MA USA