RT Journal Article SR Electronic T1 Physical activity investments that work—Get Scotland walking: a National Walking Strategy for Scotland JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP bjsports-2017-098776 DO 10.1136/bjsports-2017-098776 A1 Aileen Campbell A1 Catherine Calderwood A1 Graeme Hunter A1 Andrew Murray YR 2017 UL http://bjsm.bmj.com/content/early/2017/11/25/bjsports-2017-098776.abstract AB