?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=M&rft.aulast=Bortolomeazzi&rft.au=Bortolomeazzi%2C+M&rft.atitle=Immunogenomics+of+Colorectal+Cancer+Response+to+Checkpoint+Blockade%3A+Analysis+of+the+KEYNOTE+177+Trial+and+Validation+Cohorts&rft.title=Gastroenterology&rft.date=29+June+2021&rft.genre=article