- Genetic reduction of embryonic leukemia-inhibitory factor production rescues placentation in SOCS3-null embryos but does not prevent inflammatory disease. Robb, L., Boyle, K., Rakar, S., Hartley, L., Lochland, J., Roberts, A.W., Alexander, W.S., Metcalf, D. Proc. Natl. Acad. Sci. U.S.A. (2005)