GTEx Get Multi Tissue Eqtls

Get multi-tissue eQTL meta-analysis results (Metasoft). Returns m-values (posterior probability of eQTL effect in each tissue), normalized effect sizes, p-values, and standard errors across all tissues for a gene-variant pair. Shows tissue-sharing patterns of eQTL effects. Use for: understanding tissue-specificity of eQTLs, finding shared vs tissue-specific effects, cross-tissue meta-analysis, regulatory mechanism studies. Requires gencode_id, optionally filter by variant_id.