Kim M, Yang H, Kim SK, Reche PA, Tirabassi RS, Hussey RE, Chishti Y, Rheinwald JG, Morehead TJ, Zech T, Damon IK, Welsh RM, Reinherz EL. Biochemical and functional analysis of smallpox growth factor (SPGF) and anti-SPGF monoclonal antibodies. J Biol Chem. 2004 Jun 11; 279(24):25838-48.