1. Beeler, G., Gibbons, P., and Chute, C.,Development of a Clinical Data Architecture (16th SCAMC, M. Frisse, ed.), McGraw-Hill, pp. 244?248, 1992.
2. Canfield, K., and Petrucci, K., Issues in enterprise data modeling for open CIS. Proceedings of the 1994 annual HIMSS conference, Phoenix, AZ, February 13?17, pp. 404?413, 1994.
3. Goldfield, N., Ambulatory encounter systems: Implications for payment and quality,J. Ambulatory Care Manage 16:33?49, 1993.
4. Griswold, R., and Griswold, M., The ICON Programming Language, Prentice Hall, Englewood Cliffs, NJ, (second edition), 1990.
5. Schuff, F., Replication: Answering the call.Database Programming and Design, April 1994.