TY - RPRT TI - CD4 expression and function in HLA class II-specific T cells. AU - W E Biddison AU - S Shaw PY - 1989 DO - 10.1111/j.1600-065x.1989.tb00017.x UR - https://pubmed.ncbi.nlm.nih.gov/2570034/ ID - 2570034 ER -