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Warning: Use of undefined constant openphil_social - assumed 'openphil_social' (this will throw an Error in a future version of PHP) in openphil_social_block_block_view() (line 90 of /var/www/html/openphil/live/sites/all/modules/custom/openphil_social_block/openphil_social_block.module).

David Holtzman, Andrew B. and Gretchen P. Jones Prof. and Chairman of Neurology; Prof. of Developmental Biology; and Associate Director of the Alzheimer’s Disease Research Center, Washington University in St. Louis School of Medicine on May 1, 2015.