Additional file 2 of Circulating vitamin C concentration and risk of cancers: a Mendelian randomization study

Additional file 2: Supplemental Table 2a. Selection of cancer-related genetic variants used for the reverse MR analyses. Supplemental Table 2b. Selected instrumental variables or their proxies for the reverse MR analyses.补充材料2：补充表2a：用于逆孟德尔随机化（reverse MR）分析的癌症相关遗传变异筛选表；补充表2b：用于逆孟德尔随机化分析的工具变量（instrumental variables）或其替代变量筛选表。