1. From the Community Medical Services Division, Clalit Health Services, Tel Aviv (R.A., A.H., A.P., D.N., S.Y.), the Maximizing Health Outcomes Research Lab, Sapir College, Sderot (R.A.), and the Faculty of Health Sciences, Ben-Gurion University of the Negev, Beersheba (R.S., M.F.) — all in Israel.