RT Journal Article SR Electronic T1 Many US adults with controlled type 2 diabetes receive frequent HbA1c testing and possible overtreatment JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 98 OP 98 DO 10.1136/ebmed-2016-110414 VO 21 IS 3 A1 Neda Laiteerapong YR 2016 UL http://ebm.bmj.com/content/21/3/98.abstract AB