[1] HENNEPIN CTY MED CTR,REG KIDNEY DIS PROGRAM,DRUG EVALUAT UNIT,MINNEAPOLIS,MN 55415
[2] QUINCY RES CTR,KANSAS CITY,MO
[3] ST JOSEPH HOSP,CARDIOVASC RES UNIT,CHICAGO,IL
[4] PENINSULAR TESTING CORP,MIAMI,FL
[5] COLIMA INTERNAL MED GRP,WHITTIER,CA
[6] ST LUKES GEN HOSP,HYPERTENS CLIN,BELLINGHAM,WA
[7] UNIV N DAKOTA,DEPT MED,FARGO,ND
[8] HYPERTENS CTR NASHVILLE,NASHVILLE,TN
[9] BIODECIS LABS,PITTSBURGH,PA
[10] PRINCESS MARGARET HOSP,NASSAU,BAHAMAS
[11] OREGON HLTH SCI UNIV,DIV NEPHROL HYPERTENS,PORTLAND,OR 97201
[12] YALE UNIV,SCH MED,NEW HAVEN,CT 06510
[13] SUNY UPSTATE MED CTR,SCH MED,DEPT MED,SYRACUSE,NY 13210
[14] BAYLOR COLL MED,DEPT MED,HOUSTON,TX 77030
[15] WESTSIDE FAMILY MED CTR,KALAMAZOO,MI
[16] UNIV PENN,PHILADELPHIA VET ADM HOSP,DIV GEN MED,PHILADELPHIA,PA 19104
[17] UNIV PENN,DEPT MED,PHILADELPHIA,PA 19104