@ARTICLE{
TITLE="Antigen affinity, costimulation, and cytokine inputs sum linearly to amplify T cell expansion",
AUTHOR="Julia M. Marchingo, Andrey Kan, Robyn M. Sutherland, Ken R. Duffy, Cameron J. Wellard, Gabrielle T. Belz, Andrew M. Lew, Mark R. Dowling, Susanne Heinzel, Philip D. Hodgkin",
YEAR="2014",
VOLUME="346",
NUMBER="6213",
PAGES="1123--1127",
JOURNAL="Science"
}