Anne van Dalen

220 I Chapter 8 RESULTS The literature search yielded 193 articles from PubMed database, 50 articles from Embase database, 5 articles from the Cochrane Library, and 27 articles from IEEE Xplore database. Finally, 9 articles were included. The flowchart with a more detailed description of the selection procedure may be viewed in Figure 1. The nine included studies are the following: Bodenstedt et al., 22 Cho et al., 23 Devi et al., 24 Hashimoto et al., 25 Jermyn et al., 26 Kassahun et al., 27 Padoy, 17 Zhao et al., 28 and Liu et al. 29 Figure 1. Flowchart of literature search.