1. Department of Hematology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
2. Instituto de Investigacion Sanitaria, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
3. Department of Infectious Diseases, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
4. Department of Pathology, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain