Incorporating the International Classification of Functioning, Disability, and Health (ICF) into an electronic health record to create indicators of function: proof of concept using the SF-12 - Mayo, NE; Poissant, L; Ahmed, S; Finch, L; Higgins, J; Salbach, NM; Soicher, J; Jaglal, S (Journal of the American Medical Informatics Association, 2004)