A promoter polymorphism in the gene encoding interleukin-12 p40 (IL12B) is associated with mortality from cerebral malaria and with reduced nitric oxide production. - Morahan, G; Boutlis, C; Huang, D; Pain, A; Saunders, JR; Hobbs, MR; Granger, D; Weinberg, J; Peshu, N; Mwaikambo, E; Marsh, K; Roberts, D; et al. (Genes and immunity, 2002)