@misc{indiciae4d7d52e78cfd, title = {Polymyositis and cell-mediated immunity.}, author = {M Ziff and R L Johnson}, year = {1973}, doi = {10.1056/nejm197303012880910}, url = {https://pubmed.ncbi.nlm.nih.gov/4734263/}, note = {Source identifier: 4734263} }