Yehudit Eden Friedman1, Gabriela Gayer2, Moran Livne Margolin1, Abraham Kneller3, Meir Mouallem1. 1. Department of Internal Medicine E, Sheba Medical Center, Tel Hashomer, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Israel. 2. Department of Nuclear Medicine, Sheba Medical Center, Tel Hashomer, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Israel. 3. Department of Hematology, Sheba Medical Center, Tel Hashomer, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Israel.