[1] Janakpuri Super Special Hosp, Dept Cardiol, New Delhi 110058, India
[2] Univ N Carolina, Div Cardiol, Chapel Hill, NC 27515 USA
[3] Harvard Med Sch, Brigham & Womens Hosp, Div Cardiol, TIMI Study Grp, Boston, MA 02115 USA
[4] Gobind Ballabh Pant Inst Post Grad Med Educ & Res, Dept Cardiol, New Delhi, India
[5] Fortis Escorts Heart Inst, New Delhi, India