Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Masao Soekawa,Contribution of Shibasaburo Kitasato to the Improvement of Smallpox Vaccine in Japan,日本医史学雑誌 = Journal of the Japanese Society for the History of Medicine,05493323,東京 : 日本医史学会,1983-07,29,3,p352-348,https://cir.nii.ac.jp/crid/1520290882644881664,