RT Journal Article SR Electronic T1 Group based exercise reduced falls in community dwelling people ≥70 years of age JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 57 OP 57 DO 10.1136/ebm.8.2.57 VO 8 IS 2 YR 2003 UL http://ebm.bmj.com/content/8/2/57.abstract AB