Doward LC, McKenna SP, Meads DM, Jovell AJ, Fisk J, Eckert BJ. The international development of patient reported outcome indices for multiple sclerosis. Poster presented at the 2006 Sixteenth Meeting of the European Neurological Society; May 2006. Lausanne, Switzerland. [abstract] J Neurol. 2006; 253(Suppl 2):125.
Williams LK, Pladevall-Vila M, Fendrick AM, Lafata JE, McMahon LF. Differences in the reporting of care-related patient injuries to existing reporting systems. Jt Comm J Qual Patient Saf. 2003 Sep;29(9):460-7.