Chang TL, Mosoian A, Pine R, Klotman ME, Moore JP. A Soluble Factor(s) Secreted from CD8+T Lymphocytes Inhibits Human Immunodeficiency Virus Type 1 Replication through STAT1 Activation. J Virol. 2002 Jan 15;76(2):569–81. doi: 10.1128/jvi.76.2.569-581.2002.