[1
]From the Clinical Economics Research Unit (S.S.R., K.P.W., K.A.S.) and Division of
Cardiology (A.K.B., B.J.G., A.J.S.), Georgetown University Medical Center, Washington,
DC, and Maryland HealthCare Associates, LLC, Clinton, Md, and Delmarva Foundation
for Medical Care, Incorporated, Easton, Md (W.J.O.).