1. Drug Discovery Unit, College of Life Sciences; University of Dundee; Dow Street Dundee DD1 5EH Scotland UK
2. DPU TB Diseases of the Developing World; Tres Cantos Medicines Development Campus; GlaxoSmithKline Severo Ochoa 2 Tres Cantos 28760 Madrid Spain
3. Platform Technology and Sciences; Medicines Research Centre, GlaxoSmithKline; Gunnels Wood Road Stevenage Herts SG1 2NY Hertfordshire UK