@misc{indiciae956834632c59, title = {Transfer factor in delayed hypersensitivity.}, author = {H S Lawrence and F T Valentine}, year = {1970}, doi = {10.1111/j.1749-6632.1970.tb55996.x}, url = {https://pubmed.ncbi.nlm.nih.gov/5263843/}, note = {Source identifier: 5263843} }