Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1475-2875-13-144/MediaObjects/12936_2014_Article_3183_Fig4_HTML.jpg)
Schematic overview of the literature review procedure and results to obtain individual records of relapse and follow-up.
Schematic overview of the literature review procedure and results to obtain individual records of relapse and follow-up.