Fig. 2From: Causal effects of inflammatory bowel diseases on the risk of kidney stone disease: a two-sample bidirectional mendelian randomizationFlow chart on how to perform MR analysis step by step. Abbreviations: SNPs, single-nucleotide polymorphisms; MR-PRESSO, MR-Pleiotropy Sum and Outlier method; val, validation; IBD, inflammatory bowel disease; CD, Crohn’s disease; UC, ulcerative colitis; KSD, kidney stone diseaseBack to article page