. 2016 Nov 30;2(2):e16. doi: 10.2196/mededu.6288
©Gino De Angelis, Barbara Davies, Judy King, Jessica McEwan, Sabrina Cavallo, Laurianne Loew, George A Wells, Lucie Brosseau. Originally published in JMIR Medical Education (http://mededu.jmir.org), 30.11.2016.
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Figure 1.
Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow diagram of included studies.