[1] UNIV MINNESOTA,SCH MED,VASC MED PROGRAM,MINNEAPOLIS,MN 55455
[2] HARBOR UCLA MED CTR,DEPT MED,LOS ANGELES,CA
[3] HARVARD UNIV,CAMBRIDGE,MA 02138
[4] STANFORD UNIV,STANFORD,CA 94305
[5] CLEVELAND CLIN,CLEVELAND,OH 44106
[6] MAYO CLIN,ROCHESTER,MN
[7] NORTHWESTERN UNIV,EVANSTON,IL
[8] ST ELIZABETH HOSP,WASHINGTON,DC