[1] MOH, North Sabah Salem Ctr, Kuwait, Kuwait
[2] MOH, Gen Med Council, Kuwait, Kuwait
[3] MOH, Manahy AlEsamy Ctr, Kuwait, Kuwait
[4] Alexandria Univ, Fac Med, Community Med Dept, Alexandria, Egypt
[5] Minist Hlth, Dept Occupat Med, Kuwait, Kuwait
[6] Alexandria Univ, Med Res Inst, Dept Med Stat, Alexandria, Egypt
[7] Minist Hlth, Dept Hlth Informat & Med records, Kuwait, Kuwait