Health information exchange [electronic resource] : navigating and managing a network of health information systems / edited by Brian E. Dixon, Department of Epidemiology, Richard M. Fairbanks School of Public Health, Indiana University, Indianapolis, IN, USA, Center for Biomedical Informatics, Regenstrief Institute, Inc., Indianapolis, IN, USA, Department of Veterans Affairs, Health Services Research & Development Service, Center for Health Information and Communication, Indianapolis, IN, USA.