. 2016 Dec 12;5(1):2091. doi: 10.1186/s40064-016-3591-5
© The Author(s) 2016
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), 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.
Fig. 2.
Funnel plots for detection of publication bias of PCT (a), CRP (b) and IL-6 (c)