PT - JOURNAL ARTICLE AU - Roger Jones TI - Think Twice AID - 10.3399/bjgp17X693521 DP - 2017 Dec 01 TA - British Journal of General Practice PG - 539--539 VI - 67 IP - 665 4099 - http://bjgp.org/content/67/665/539.short 4100 - http://bjgp.org/content/67/665/539.full SO - Br J Gen Pract2017 Dec 01; 67