著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Joseph A Lewnard and Vincent X Liu and Michael L Jackson and Mark A Schmidt and Britta L Jewell and Jean P Flores and Chris Jentz and Graham R Northrup and Ayesha Mahmud and Arthur L Reingold and Maya Petersen and Nicholas P Jewell and Scott Young and Jim Bellows,"Incidence, clinical outcomes, and transmission dynamics of severe coronavirus disease 2019 in California and Washington: prospective cohort study",BMJ,1756-1833,BMJ,2020-05-22,369,,m1923,https://cir.nii.ac.jp/crid/1363388845977639936,https://doi.org/10.1136/bmj.m1923