%0 Scholarly Article or Book Chapter %T Does an offer for a free on-line continuing medical education (CME) activity increase physician survey response rate? A randomized trial %D August 23, 2012 %I BioMed Central Ltd %R http://localhost/files/6682x645z %G http://id.loc.gov/vocabulary/iso639-2/eng %[ 2022-06-23 %9 Article %~ Carolina Digital Repository %W UNC-Chapel Hill