Figure 1
The figure displays six boxes in a horizontal row. Each rectangle contains text from left to right as: First box: “(S1) Formulating the problem” Second box: “(S2) Searching the literature” Third box: “(S3) Screening for inclusion” Fourth box: “(S4) Assessing quality” Fifth box: “(S5) Extracting data” Sixth box: “(S6) Analysing, synthesising data” Each box is connected to the box on the right by a right-pointing arrow.The SLR process steps. Source: Adapted from Templier and Paré (2015)