[1] Tel Aviv Univ, Sackler Fac Med, Sch Publ Hlth, Dept Epidemiol & Prevent Med, IL-69978 Tel Aviv, Israel
[2] Tel Aviv Univ, Sackler Fac Med, Stanley Steyer Inst Canc Epidemiol & Res, IL-69978 Tel Aviv, Israel
[3] Minist Hlth, Israel Ctr Dis Control, Tel Hashomer, Israel