FINE-MAPPING DESCRIPTION Citation: Huang et al, Nature 2017 Fine-mapping method: Three methods were used: two Bayesian and one MCMC based. Results from the three methods were merged and only those consistent across methods were reported. Association analyses: The two Bayesian methods used the constrained multinomial regression with covariates. The MCMC method used the binomial regression with covariates Locus definition: Immunochip was designed with ~200 high density loci. We used the same loci definition in this fine-mapping