[1] Liaquat Univ Med & Hlth Sci, Med, Jamshoro, Pakistan
[2] Indus Med Coll, Internal Med, Tando Muhammad Khan, Pakistan
[3] Sheikh Zayed Med Coll Hosp, Cardiol, Rahim Yar Khan, Pakistan
[4] Liaquatian Res Council, Internal Med, Hyderabad, Andhra Pradesh, India
[5] Univ Louisville, Cardiovasc Med, Sch Med, Louisville, KY USA
[6] Liaquatian Res Council, Cardiovasc Med, Hyderabad, Andhra Pradesh, India
[7] Dow Univ Hlth Sci, Civil Hosp Karachi, Internal Med, Karachi, Pakistan
[8] Dow Univ Hlth Sci, Internal Med, Karachi, Pakistan
[9] Internal Med, Trinity Hlth Livonia, Livonia, MI USA