PT - JOURNAL ARTICLE AU - Birtwhistle, Richard AU - Williamson, Tyler TI - Primary care electronic medical records: a new data source for research in Canada AID - 10.1503/cmaj.140473 DP - 2015 Mar 03 TA - Canadian Medical Association Journal PG - 239--240 VI - 187 IP - 4 4099 - http://www.cmaj.ca/content/187/4/239.short 4100 - http://www.cmaj.ca/content/187/4/239.full SO - CMAJ2015 Mar 03; 187