RT Journal Article SR Electronic T1 Goal setting, problem solving and feedback improve short-term adherence to physical activity in people with stable heart failure 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 343 OP 344 DO 10.1136/bjsports-2013-092956 VO 48 IS 4 A1 Bill Brennan A1 Mark R Elkins YR 2014 UL http://bjsm.bmj.com/content/48/4/343.abstract AB