[1] Aga Khan Univ, Dept Biol & Biomed Sci, Karachi, Pakistan
[2] Jinnah Sindh Med Univ, Dept Physiol, Karachi, Pakistan
[3] Imam Abdurrahman Bin Faisal Univ, Dept Publ Hlth, Coll Publ Hlth, Dammam, Saudi Arabia
[4] Shifa Int Hosp, Dept Emergency Med, Islamabad, Pakistan
[5] Rabigh King Abdul Aziz Univ, Dept Med, Fac Med, Jeddah, Saudi Arabia
[6] Rabigh King Abdul Aziz Univ, Dept Clin Biochem Med Educ, Fac Med, Jeddah, Saudi Arabia