Affiliation: | Current affiliations: Maine Medical Center (B.J.L., D.A.H., M.K.S.), Portland, Maine, Baystate Medical Center (D.J.S.), Springfield, Massachusetts, St. Michael's Hospital (P.P.K., G.R.M.), Toronto, Ontario, Canada, University of Colorado Health Sciences Center (Y.K.C.), Denver, Colorado, Northwestern Memorial Hospital (W.G.P.), Chicago, Illinois, Medical University of South Carolina (R.H.H., P.B.C.), Charleston, South Carolina, University of Pittsburgh Medical Center (A.A.S., J.A.), Pittsburgh, Pennsylvania, Indiana University School of Medicine (G.A.L., S.S.), Indianapolis, Indiana, USA, Evangelisches Krankenhaus (H.N., B.M.S.), Düsseldorf, Germany |