In the article by Chen and Wang [Chen C-C and Wang J-K (1999) p38 But not p44/42 mitogen-activated protein kinase is required for nitric oxide synthase induction mediated by lipopolysaccharide in RAW 264.7 macrophages. Mol Pharmacol 55: 481–488], a reference was printed incorrectly. The corrected reference appears below. We regret any inconvenience caused by this error.  Chen CC, Wang JK and Lin SB (1998a) Antisense oligonucleotides targeting protein kinase C-α, -βI, or -δ but not -η inhibit lipopolysaccharide-induced nitric oxide synthase expression in RAW 264.7 macrophages: Involvement of a nuclear factor κB-dependent mechanism. J Immunol 161:6206–6214.

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