[1] King Abdulaziz Univ, Dept Hlth Serv & Hosp Adm, Fac Econ & Adm, Jeddah 21589, Saudi Arabia
[2] Maastricht Univ, Med Ctr, Fac Hlth Med & Life Sci, Dept Hlth Serv Res,Care & Publ Res Inst CAPHRI, POBox 616, NL-6200 MD Maastricht, Netherlands
[3] Univ Jordan, Sch Business, Dept Mkt, Amman 11942, Jordan
[4] United Nations Univ, Maastricht Econ & Social Res Inst Innovat & Techno, NL-6211 LK Maastricht, Netherlands