Tumor necrosis factor-alpha and lipopolysaccharide enhance interferon-induced antichlamydial indoleamine dioxygenase activity independently - Currier,A.R.; Ziegler,M.H.; Riley,M.M.; Babcock,T.A.; Telbis,V.P.; Carlin,J.M. (J Interf Cyto Res, 2000)