Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) F. Fenner,Risks and benefits of vaccinia vaccine use in the worldwide smallpox eradication campaign,Research in Virology,0923-2516,Elsevier BV,1989-01,140,,465-466,https://cir.nii.ac.jp/crid/1364233268887188736,https://doi.org/10.1016/s0923-2516(89)80126-8