Fig. 4From: Association between fat mass and obesity associated (FTO) gene rs9939609 A/T polymorphism and polycystic ovary syndrome: a systematic review and meta-analysisFunnel plot of publication bias in selection of studies on the FTO rs9939609 A/T polymorphism. Publication bias was assessed under dominant model (AA + AT vs. TT). SE represents standard error; OR represents odds ratioBack to article page