1. Behlen FM, Hoffmann KR, MacMahon H: Long term strategies for PACS archive design.Proc SPIE 2711:2–8, 1996
2. Extensive documentation is at the HL7 SGML/XML Web Site, a link to which can be found at http://www.hl7.org.
3. Bowns IR: Standard Generalized Markup Language: Should It Have a Role in Clinical Records? Top Health Inform Manage 18(2):24–31, 1997
4. Merriam Webster Dictionary. http://www.m-w.com/cgi-bin/mweb.