David F Marks@david_f_marksInvestigator bias and the PACE trial - Mar 07, 2017 http://journals.sagepub.com/doi/full/10.1177/1359105317697324#.WMEwkg-IjxQ.twitter…10:38 AM · Mar 9, 2017·Twitter Web Client6 Retweets1 Quote Tweet11 Likes