Our hypothesis-generating study suffers from a number of limitations including its primary focus on bioinformatics-based analyses without integrated laboratory testing of ERBB2 mRNA levels using other methods in addition to RNAseq and lack of data to show that MM cells from ERBB2high patients with high levels of ERBB2 mRNA also express ERBB2 protein at higher levels than ERBB2low patients. Here, ERBB2 is linked to Miyoshi myopathy.