The Soluble TNF Receptor Sepsis Study GroupFrom the Department of Pulmonary and Critical Care Medicine, Cleveland Clinic Foundation, Cleveland (C.J.F.); the Research and Development Division, Immunex Corporation, Seattle (J.M.A.); the Department of Medicine, Brown University School of Medicine and Memorial Hospital of Rhode Island, Pawtucket (S.M.O.); the Department of Surgery, Cornell University Medical Center, New York (S.F.L.); the Sections of Pulmonary and Critical Care Medicine, Rush-Presbyterian-St. Luke's Medical Center, Chicago (R.A.B.); the Division of Communicable Diseases and Immunology, Walter Reed Army Institute of Research, Washington, D.C. (J.C.S.); the Department of Medicine, University of California, Los Angeles (E.A.); the Department of Medicine, University of Miami and Veterans Affairs Medical Center, Miami (R.M.H.S.); and the Department of Surgery, Mt. Sinai Medical Center, New York (E.B.). Address reprint requests to Dr. Fisher at the Critical Care Research Unit, Department of Pulmonary and Critical Care Medicine, Mail Code G-62, Cleveland Clinic Foundation, 9500 Euclid Ave., Cleveland, OH 44195.Supported by a grant from Immunex Corporation.The members of the Soluble TNF Receptor Sepsis Study Group are listed in the Appendix.