RT Journal Article SR Electronic T1 The Shape of Evidence JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 531 OP 531 DO 10.3399/bjgp19X706109 VO 69 IS 688 A1 Roger Jones YR 2019 UL http://bjgp.org/content/69/688/531.abstract AB