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) LATCHMAN Y.,PD-L2 is a second ligand for PD-1 and inhibits T cell activation,Nat. Immunol.,,,2001,2,,261,https://cir.nii.ac.jp/crid/1574231874824241792,