“…A search of the databases identified a total of 13 219 records. After removing 2909 duplicates, 10 310 records were screened by reviewing the titles and abstracts; 107 potentially relevant records were included in the full‐text assessment and a total of 20 studies, 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 including 5 conference abstracts, 15 , 21 , 25 , 26 , 31 1 short communication 29 and 14 full‐length articles, † were included in the final analysis. A flow diagram of the reviewing process is shown in Figure .…”