[1] Tel Aviv Univ, Sackler Fac Med, Tel Aviv, Israel
[2] Beilinson Med Ctr, Dept Dermatol, Rabin Med Ctr, Petah Tiqwa, Israel
[3] Clalit Hlth Serv, Dept Qual Measurements & Res, Chief Phys Off, Tel Aviv, Israel
[4] Ben Gurion Univ Negev, Siaal Res Ctr Family Med & Primary Care, Div Community Hlth, Fac Hlth Sci, Beer Sheva, Israel