RT Journal Article SR Electronic T1 Mens Sana JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 435 OP 435 DO 10.3399/bjgp17X692609 VO 67 IS 663 A1 Roger Jones YR 2017 UL http://bjgp.org/content/67/663/435.abstract AB