“…Of the articles included for review, two studies randomised patients to intervention and control groups (Bokinskie, 1992;O'Farrell, Murphy, Alter, & Fals-Stewart, 2008), although both had small sample sizes and one gave minimal information about the randomisation procedure (Bokinskie, 1992). The remaining studies included three single group pre and post trials (Fukui et al, 2013;Hannon et al, 2012;Hudson et al, 2009), two observational cohort studies (Hughes, Joyce, & Staley, 1987;Olfson et al, 1999) and one satisfaction survey (Sundararajan, Sullivan, & Chapman, 2012). Several of the papers also had small sample sizes and insufficient power to detect significant results.…”