RT Journal Article SR Electronic T1 Physical, nutritional, cognitive and combination interventions reduce frailty in community-dwelling prefrail and frail older people JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 142 OP 142 DO 10.1136/ebmed-2016-110425 VO 21 IS 4 A1 Nicola Fairhall YR 2016 UL http://ebm.bmj.com/content/21/4/142.abstract AB