Virus-directed, Enzyme Prodrug Therapy with Nitroimidazole Reductase: A Phase I and Pharmacokinetic Study of its Prodrug, CB1954 by Chung-Faye, G, Palmer, D, Anderson, D, Clark, J, Downes, M, Baddeley, J, Hussain, S, Murray, P, Searle, P, Seymour, L, Harris, P, Ferry, D, Kerr, D