The following publications are possibly variants of this publication:
- Physician order entry in U.S. hospitalsJoan S. Ash, Paul N. Gorman, William R. Hersh. amia 1998: [doi]
- Research Paper: A Cross-site Qualitative Study of Physician Order EntryJoan S. Ash, Paul N. Gorman, Mary Lavelle, Thomas H. Payne, Thomas A. Massaro, Gerri L. Frantz, Jason A. Lyman. jamia, 10(2):188-200, 2003. [doi]