RT Journal Article SR Electronic T1 Formative assessments in medical education: are excessive, and erode the learning and teaching experience JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 145 OP 145 DO 10.3399/bjgp13X664298 VO 63 IS 608 A1 Edin Lakasing YR 2013 UL http://bjgp.org/content/63/608/145.abstract AB