"Virtual" Health Care Organizations and the Challenges of Improving QualityPage, StephenHealth Care Management Review: January-February-March 2003 - Volume 28 - Issue 1 - p 79-92 Article Abstract Author Information This article examines the challenges of improving health care quality continuously within and across "virtual" provider organizations such as independent practice associations and physician-hospital organizations. It draws on recent research and theory about interorganizational networks in other fields to develop recommendations for securing physicians' commitment to quality improvement strategies in today's health care environment. Stephen Page, Ph.D., is Assistant Professor, Evans School of Public Affairs, University of Washington, Seattle. This project was supported by grant number HS 00086 from the Agency for Health Care Research and Quality. Many thanks to Steve Shortell, Claire Lane, the editors of Health Care Management Review, and two anonymous reviewers for helpful comments on earlier drafts of the manuscript. © 2003 Lippincott Williams & Wilkins, Inc.