@misc{indiciae82dcfa86086b, title = {Indications for smallpox vaccination: policies still differ.}, author = {D Baxby}, year = {1993}, doi = {10.1016/0264-410x(93)90277-5}, url = {https://pubmed.ncbi.nlm.nih.gov/8470422/}, note = {Source identifier: 8470422} }