“…In a systematic review from 2006, Connell, Cahill, Barkham, Gilbody, and Madill identified only one study by Vonk and Tyrer (1999) fulfilling these criteria. A literature search identified nine more recent studies: four studies from the USA (McAleavey et al, 2017;Minami et al, 2009;Nordberg, Castonguay, McAleavey, Locke, & Hayes, 2016;Talley & Clack, 2006), two from the UK Murray, McKenzie, Murray, & Richelieu, 2016), two from Italy (Monti, Tonetti, & Ricci Bitti, 2013;Strepparava & Bani, 2016), and one study from Germany (Sperth, Hofmann, & Holm-Hadulla, 2014). Eight of these studies reported a mean number of sessions between 4 and 11, while the Italian study by Monti et al (2013) had a mean of 40 sessions.…”