RT Journal Article SR Electronic T1 Metformin associated with better cardiovascular outcomes than other glycaemic therapies JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 103 OP 103 DO 10.1136/eb-2013-101682 VO 19 IS 3 A1 Zachary T Bloomgarden YR 2014 UL http://ebm.bmj.com/content/19/3/103.abstract AB