. 2019 Jan 7;9(1):1–8. doi: 10.1159/000496107
Copyright © 2019 by S. Karger AG, Basel
This article is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND) (http://www.karger.com/Services/OpenAccessLicense). Usage and distribution for commercial purposes as well as any distribution of modified material requires written permission.
Fig. 1.
Flow diagram of the search results.