https://beta-documents.el-una.org/id/eprint/108/1/naaug-2003-creedon-overview.pdf
https://beta-documents.el-una.org/id/eprint/108/2/naaug-2003-creedon-data.pdf
https://beta-documents.el-una.org/id/eprint/108/3/naaug-2003-creedon-ppt.pdf
https://beta-documents.el-una.org/id/eprint/108/4/naaug-2003-creedon-data-elements.pdf