Igor Snast1, Iris Ostfeld2, Lev Pavlovsky1, Emmilia Hodak1,3, Anat Gafter-Gvili2,4,3. 1. Department of Dermatology, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel. 2. Department of Medicine A, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel. 3. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel. 4. Institute of Hematology, Rabin Medical Center (Beilinson Campus), Petah Tikva, Israel.