Fig. 1From: The influence of single nucleotide polymorphisms of NOD2 or CD14 on the risk of Mycobacterium tuberculosis diseases: a systematic reviewFlowchart of the study selection process study characteristics. The characteristics of the included studies are summarized in Table 1. All the studies (n=13) had a case-control design, with nine publications evaluating CD14 gene polymorphisms, and four studies analyzing NOD2 polymorphismsBack to article page