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