Associations of the MTHFR rs1801133 polymorphism with coronary artery disease and lipid levels: a systematic review and updated meta-analysis. - Luo, Zhi; Lu, Zhan; Muhammad, Irfan; Chen, Yun; Chen, Qiuhong; Zhang, Jiaojiao; Song, Yongyan (Lipids in Health & Disease, 2018)