[1] Rush Presbyterian St Lukes Med Ctr, Rush Hypertens Ctr, Chicago, IL USA
[2] Univ Alabama, Birmingham, AL USA
[3] Tulane Univ, New Orleans, LA 70118 USA
[4] Prairie Heart Inst, Springfield, IL USA
[5] Washington Univ, Sch Med, St Louis, MO 63130 USA
[6] St Lukes Roosevelt Hosp, New York, NY USA
[7] Lenox Hill Hosp, New York, NY 10021 USA
[8] Univ Texas, SW Med Ctr, Dallas, TX USA
[9] Univ Hosp Cleveland, Cleveland, OH 44106 USA
[10] Glaxosmithkline, Philadelphia, PA USA