title: Difference or ratio? A note on two-treatment, four-sequence analysis.
authors.forename: T P
authors.initials: TP
authors.lastname: Hutchinson
authors.forename: D
authors.initials: D
authors.lastname: Cairns
mesh_terms: D001699:Biometry / Q000379:methods; D016009:Chi-Square Distribution; D018592:Cross-Over Studies; D006801:Humans; D015233:Models, Statistical; D016032:Randomized Controlled Trials as Topic; D018709:Statistics, Nonparametric