TY  - RPRT
TI  - New battlefields for costimulation.
AU  - Natalia Martin-Orozco
AU  - Chen Dong
PY  - 2006
DO  - 10.1084/jem.20060219
UR  - https://pubmed.ncbi.nlm.nih.gov/16606678/
ID  - 16606678
ER  -