MYL6 and microscopic polyangiitis: Concerning the nine evaluation items of BVAS, the cutaneous, cardiovascular, and nervous system scores of anti-MYL6 antibody-positive MPA patients were significantly lower than anti-MYL6 antibody-negative MPA patients (p=0.0128, p=0.0148, and p<0.001, respectively), although other items, including the renal and chest scores, were equivalent between the two groups (Fig. 4).