Fig. 2From: Association of COL9A3 trp3 polymorphism with intervertebral disk degeneration: a meta-analysisForest plot of the association between COL9A3 trp3 polymorphisms and IDD (trp3 positive versus trp3 negative) for: (a) overall analysis and subgroup analyses stratified by (b) gender, (c) ethnicityBack to article page