TY - RPRT TI - CD81 and CD28 costimulate T cells through distinct pathways. AU - D A Witherden AU - R Boismenu AU - W L Havran PY - 2000 DO - 10.4049/jimmunol.165.4.1902 UR - https://pubmed.ncbi.nlm.nih.gov/10925271/ ID - 10925271 ER -