EDITORIALRetrospective Analyses of Large Medical Databases What Do They Tell Us?WARD, RICHARD A.*; BRIER, MICHAEL E.*,† Author Information *Division of Nephrology, Department of Medicine, School of Medicine, University of Louisville, Louisville, Kentucky. †Veterans Affairs Medical Center, Louisville, Kentucky. Correspondence to Dr. Richard A. Ward, Kidney Disease Program, University of Louisville, 615 South Preston Street, Louisville, KY 40202-1718. Phone: 502-852-5757; Fax: 502-852-7643; E-mail: [email protected] Received December 15, 1998. Accepted December 16, 1998. Journal of the American Society of Nephrology 10(2):p 429-432, February 1999. | DOI: 10.1681/ASN.V102429 Buy Metrics Copyright © 1999 The Authors. Published by Wolters Kluwer Health, Inc. All rights reserved.