[1] King Saud Bin Abdulaziz Univ Hlth Sci, Coll Appl Med Sci, Dept Resp Therapy, Alahsa, Saudi Arabia
[2] King Abdullah Int Med Res Ctr, Alahsa, Saudi Arabia
[3] Jazan Univ, Coll Nursing & Hlth Sci, Dept Nursing, Resp Therapy Program, Jazan, Saudi Arabia
[4] Georgia State Univ, Dept Resp Therapy, Atlanta, GA USA
[5] King Saud Univ, Coll Appl Med Sci, Dept Rehabil Hlth Sci, Riyadh, Saudi Arabia
[6] Univ Birmingham, Coll Med & Hlth, Dept Inflammat & Ageing, Birmingham, England
[7] King Faisal Univ, Coll Appl Med Sci, Dept Resp Care, Al Hufuf, Saudi Arabia
[8] Prince Sultan Mil Coll Hlth Sci, Dept Resp Care, Dammam, Saudi Arabia