Department of Epidemiology of Microbial Diseases, Yale University, New Haven, Connecticut, United States of America, Department of Industrial Engineering and Management, Ben Gurion University of the Negev, Beersheba, Israel.|Department of Industrial Engineering and Management, Ben Gurion University of the Negev, Beersheba, Israel, Faculty of Business Administration, Ono Academic College, Kiryat Ono, Israel.|Department of Industrial Engineering and Management, Ben Gurion University of the Negev, Beersheba, Israel.|Department of Health Systems Management, Ben Gurion University of the Negev, Beersheba, Israel.|Clalit Research Institute, Clalit Health Services, Tel Aviv, Israel.|Department of Epidemiology of Microbial Diseases, Yale University, New Haven, Connecticut, United States of America.|Department of Industrial Engineering and Management, Ben Gurion University of the Negev, Beersheba, Israel, Department of Health Systems Management, Ben Gurion University of the Negev, Beersheba, Israel, Department of Health Policy and Management, Harvard School of Public Health, Boston, Massachusetts, United States of America.