@misc{indiciaec3f492a77cc3, title = {Viral infections and multiple sclerosis.}, author = {G A MacGregor}, year = {1973}, doi = {10.1016/s0140-6736(73)91922-3}, url = {https://pubmed.ncbi.nlm.nih.gov/4120406/}, note = {Source identifier: 4120406} }