[1] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[2] Johns Hopkins Univ Hosp, Harbor UCLA Med Cntr, Los Angeles Biomed Rsch Inst, Torrance, CA USA
[3] Bronx Lebanon Hosp Cntr, Bronx, NY USA
[4] Princeton Longev Cntr, Princeton, NJ USA
[5] King Abdul Aziz Cardiac Cntr, Riyadh, Saudi Arabia
[6] Baptist Hosp Miami, Miami, FL USA