@misc{indiciae60e190bb5455, title = {Costimulatory receptors in jawed vertebrates: Conserved CD28, odd CTLA4 and multiple BTLAs}, author = {D. Bernard and J.D. Hansen and Pasquier L. Du and M.-P. Lefranc and A. Benmansour and P. Boudinot}, year = {2007}, doi = {10.1016/j.dci.2006.06.003}, url = {https://pubs.usgs.gov/publication/70032081}, note = {Source identifier: 70032081} }