%0 Journal Article %T The human T cell antigen gp39, a member of the TNF gene family, is a ligand for the CD40 receptor: expression of a soluble form of gp39 with B cell co‐stimulatory activity. %A Hollenbaugh, D. %A Grosmaire, L.S. %A Kullas, C.D. %A Chalupny, N.J. %A Braesch‐Andersen, S. %A Noelle, R.J. %A Stamenkovic, I. %A Ledbetter, J.A. %A Aruffo, A. %J The EMBO Journal %V 11 %N 12 %P 4313-4321 %@ 0261-4189 %D 1992-12-01 %I Nature Publishing Group UK %~ DeepDyve