CRP and clinically amyopathic dermatomyositis: The clinical characteristics of patients in each cluster were somewhat different between the triple-combo and dual-combo therapy or monotherapy groups, i.e., a low prevalence of CADM and a high prevalence of the requirement of supplemental oxygen in cluster #2, a younger age at diagnosis and a lower level of CRP in cluster #3, and a lower level of CRP in cluster #4 (Supplementary Table S3).