TY - RPRT TI - CD69 cell surface expression identifies developing thymocytes which audition for T cell antigen receptor-mediated positive selection. AU - I Yamashita AU - T Nagata AU - T Tada AU - T Nakayama PY - 1993 DO - 10.1093/intimm/5.9.1139 UR - https://pubmed.ncbi.nlm.nih.gov/7902130/ ID - 7902130 ER -