@misc{indiciae12164e124639, title = {US military smallpox vaccination program experience.}, author = {John D Grabenstein and William Winkenwerder}, year = {2003}, doi = {10.1001/jama.289.24.3278}, url = {https://pubmed.ncbi.nlm.nih.gov/12824209/}, note = {Source identifier: 12824209} }