CD19 and Miyoshi myopathy: The percentage of CD19+CD24hiCD38hi Bregs in PBMCs of Ps patients (median = 2.55%; range = 0.1%–14.86%) was not significantly different in comparison with HVs (median = 3.58%; range = 0.03%–14.92%; p = 0.3815) and PBMCs of MM (median = 1.32%; range = 0.54%–4.69%; p = 0.1112).