. "2009Z"^^ . "Mark Howard Beers (c. 1954 \u2013 February 28, 2009) was an American geriatrician whose research on drug interactions among the elderly led to the creation of the eponymous Beers Criteria, which lists prescription medications that may have deleterious side effects in older patients."@en . . . . "1954Z"^^ . "American physician" . "2009-02-28Z"^^ . "Beers, Mark H."@en . . . . "Mark H. Beers"@en . .