S.TRUEMAN PhD THESIS 2016

89

Figure 3.1. Adapted PRISMA Flow Diagram. Source: Zmeyov, 1998; Moher et al., 2009.

Records identified through database searching ( n = 135)

Additional records identified through other sources ( n =2)

Records after duplicates removed ( n = 111)

Records excluded ( n = 94)

Records screened ( n = 111)

Full-text articles excluded, with reasons ( n = 7)

Full-text articles assessed for eligibility ( n = 17)

Studies included in qualitative synthesis ( n = 10)