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. 2021 Dec 13;7(4):e31043. doi: 10.2196/31043

Table 2.

Summary of article characteristics (N=41).

Characteristics Frequency, n (%) References
Study type

Commentary 30 (73) [13,26-30,32-34,36,38,41-45,47,49-53,55,56,58-63]

Review 6 (15) [2,5,40,48,54,57]

Empirical study 3 (7) [31,35,37]

Case report 1 (2) [39]

Best Evidence Medical Education Guide 1 (2) [46]
Publication year

2013 1 (2) [39]

2016 3 (7) [35,56,61]

2017 2 (5) [31,50]

2018 8 (20) [5,28,32-34,42,47,53]

2019 16 (39) [13,26,27,29,30,38,40,44-46,48,49,52,57,59,62]

2020 11 (27) [2,36,37,41,43,51,54,55,58,60,63]
Country

United States 23 (56) [2,26,28-32,34,35,42,44,45,47,49-52,54,55,59,61-63]

Canada 4 (10) [13,27,33,43]

United Kingdom 2 (5) [37,56]

Other 12 (29) [5,36,38-41,46,48,53,57,58,60]