TY - RPRT TI - Human helper T cell factor(s) (ThF). I. Partial purification and characterization. AU - T Hirano AU - T Teranishi AU - H Toba AU - N Sakaguchi AU - T Fukukawa AU - I Tsuyuguchi PY - 1981 UR - https://pubmed.ncbi.nlm.nih.gov/6161177/ ID - 6161177 ER -