RNF213 and multiminicore myopathy: As visible in Fig. 3A, RNF213 patients were on average 1.8 times as young at onset compared to non-RNF213 individuals (35.2 ± 35.5 versus 65.1 ± 46.5 months, p = 0.0078) and 1.6 times younger than non-RNF213 patients with MMD (p = 0.0418).