1. Infectious Diseases Unit, Meir Hospital, Kfar-Saba, Israel
2. Faculty of Medicine, Tel-Aviv University, Ramat-Aviv, Tel-Aviv, Israel
3. Internal Medicine B, Rabin Medical Center, Beilinson Hospital, Petah-Tikva, Israel
4. Department of Diagnostic Imaging, Sheba Medical Center, Ramat-Gan, Israel
5. Infectious Diseases Unit, Sheba Medical Center, Ramat-Gan, Israel