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. 2017 Nov 1;17(Suppl 1):693. doi: 10.1186/s12879-017-2776-z

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© World Health Organization. 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution IGO License (http://creativecommons.org/licenses/by/3.0/igo/legalcode), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. In any reproduction of this article there should not be any suggestion that WHO or this article endorse any specific organization or products. The use of the WHO logo is not permitted. This notice should be preserved along with the article's original URL.

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Fig. 1 — Prisma flow chart of studies for the systematic review of detection of hepatitis B DNA from DBS samples compared to venous blood sampling (plasma/serum)