title: The state of clinical information systems after four decades of effort.
authors.affiliation: Paul D. Clayton, Chief Medical Informatics Officer, Intermountain Health Care, 4646 Lake Park Blvd., Salt Lake City, UT 84120, USA, E-Mail: COPClayt@ihc.com.
authors.forename: P D
authors.initials: PD
authors.lastname: Clayton