RT Journal Article SR Electronic T1 Smartphone-based cardiac rehabilitation JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1737 OP 1738 DO 10.1136/heartjnl-2014-306335 VO 100 IS 22 A1 Karam Turk-Adawi A1 Sherry L Grace YR 2014 UL http://heart.bmj.com/content/100/22/1737.abstract AB