RNF213 and multiminicore myopathy: In comparison with the data on Korean MMD patients from a published study (30/38; minor allele frequency, 39.5 %) [6], the carrier containing the RNF213 p.Arg1480Lys variant showed a strong association with MMD in the Korean population (P < 0.001), giving an odds ratio of 162.7 (95 % CI, 65.5–403.9) and 137.8 (95 % CI, 55.8–339.9) based on the cord blood and adults samples, respectively.