Figure 1
The flow diagram shows three text boxes on the left labeled “Records identified from search databases n equals 1030”, “Records after general screening n equals 622”, and “Records included in final analysis n equals 239”. The first text box is connected to the second text box through a downward arrow, and the second text box is connected to the third text box through a downward arrow. From the first arrow between the first and second text boxes, a horizontal arrow extends to a right-side text box labeled “Records removed: Duplicates n equals 231, Books, book sections, conference proceedings n equals 164, Book reviews n equals 3, Corrigendum n equals 1, Non-English language n equals 9”. From the second arrow between the second and third text boxes, another horizontal arrow extends to a right-side text box labeled “Skimming phase No accounting, Out of scope, Broad focus on sustainability n equals 383”.Exclusion criteria of the literature search. Source(s): Authors’ own work