eQTL for SWAP70 in whole blood tissue from eQTLGen Consortium were also colocalized with the GWAS of RA, CAD, and HF at this locus (PPH4: 0.87 for eQTL-CAD trait pair; PPH4: 0.56 for eQTL-RA trait pair; PPH4: 0.52 for eQTL-HF trait pair, Additional file 1: Table S12). Here, SWAP70 is linked to hydrops fetalis.