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