title: Economic evaluations to aid decision to conduct a trial.
authors.affiliation: Ministry of Defence, Ash Vale, Hants, UK.
authors.forename: T
authors.initials: T
authors.lastname: Jefferson
mesh_terms: D002986:Clinical Trials as Topic / Q000191:economics*; D003362:Cost-Benefit Analysis; D016481:Helicobacter Infections / Q000191:economics / Q000517:prevention & control; D016480:Helicobacter pylori; D006801:Humans; D008390:Markov Chains; D008403:Mass Screening / Q000191:economics; D012107:Research Design