- A phase I trial of recombinant human gamma interferon (IFN-gamma 4A) in patients with advanced malignancy. Perez, R., Lipton, A., Harvey, H.A., Simmonds, M.A., Romano, P.J., Imboden, S.L., Giudice, G., Downing, M.R., Alton, N.K. Journal of biological response modifiers. (1988)