[1] King Saud bin Abdulaziz Univ Hlth Sci, Coll Appl Med Sci, Dept Resp Therapy, Riyadh, Saudi Arabia
[2] King Abdullah Int Med Res Ctr, Riyadh, Saudi Arabia
[3] Umm Al Qura Univ, Coll Publ Hlth & Hlth Informat, Dept Hlth Serv Management, Mecca, Saudi Arabia
[4] Taibah Univ, Coll Med, Dept Family & Community Med, Medina, Saudi Arabia
[5] King Saud bin Abdulaziz Univ Hlth Sci, Coll Appl Med Sci, Riyadh 13241, Saudi Arabia