1. “Seràgnoli” Institute of Hematology, Bologna University School of Medicine, Bologna, Italy;
2. Hematologic Clinic, Department of Experimental and Clinical Medical Sciences, Udine University, Udine, Italy;
3. Institute of Nuclear Medicine, Bologna University School of Medicine, Bologna, Italy; and
4. Institute of Nuclear Medicine, S. Maria della Misericordia Hospital, Udine, Italy