[1] GlaxoSmithKline Res Ltd, Neurol & GI Ctr Excellence Drug Discovery, Dept Med Chem, Harlow CM19 5AW, Essex, England
[2] GlaxoSmithKline Inc, Med Res Ctr, Dept Assay Dev & Cpd Profiling, Stevenage SG1 2NY, Herts, England
[3] GlaxoSmithKline Inc, Med Res Ctr, Resp & Inflammat Ctr Excellence Drug Discovery, Dept Med Chem, Stevenage SG1 2NY, Herts, England