Mixed connective tissue disease is distinct from systemic lupus erythematosus: study of major histocompatibility complex class I polypeptide‐related sequence A and HLA gene polymorphisms. Issue 1 (6th December 2012) - Yoshida, K.; Inoue, H.; Komai, K.; Yamane, T.; Hashiramoto, A.; Shiozawa, K.; Shiozawa, S.