1. Clalit Health Services, Tel Aviv District; Amsterdam 9 Tel Aviv Israel 6936181
2. University of Bristol, Oakfield House; MRC Integrative Epidemiology Unit at the University of Bristol; Oakfield Road Bristol UK BS8 2BN
3. Beilinson Hospital, Rabin Medical Center; Department of Medicine E; 39 Jabotinski Street Petah Tikva Israel 49100
4. Rambam Health Care Campus; Division of Infectious Diseases; Ha-aliya 8 St Haifa Israel 33705