TY - Chinese Medical Sciences Journal A1 - Shen Chang, Zhao Meng, Li Yunyun, Liu Ningpu T1 - Methylenetrahydrofolate Reductase Gene C677T Polymorphism and Diabetic Retinopathy: a Meta-Analysis Y1 - 2020-03-31 JF - Chinese Medical Sciences Journal JO - Chinese Medical Sciences Journal SP - 71 EP - 84 VL - 35 IS - 1 UR - http://cmsj.cams.cn N1 - 10.24920/003535 ER -