@misc{indiciae7c61f603d22e, title = {[Persistent ulcerative vaccinia treated with human leukocyte interferon].}, author = {T Huziak and M Petrak and Z Brudnjak}, year = {1973}, url = {https://pubmed.ncbi.nlm.nih.gov/4763397/}, note = {Source identifier: 4763397} }