Community-Based Participatory Research (Summary) - Redirect to Archive Summary of evidence report on pharmacological treatment of dementia. This outdated information has been archived and is available for reference purposes only. To access the archived document, please go to: http://archive.ahrq.gov/clinic/epcarch.htm. Current as of September 2012 Internet Citation: Community-Based Participatory Research (Summary) - Redirect to Archive. September 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/redirects/demphsum.html