title: Should the single subject design be regarded as a valid alternative to the randomised controlled trial?
authors.affiliation: Centre for Health Sciences Research, Department of Epidemiology, Statistics and Public Health, Wales College of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, UK. newcombe@cf.ac.uk
authors.forename: R G
authors.initials: RG
authors.lastname: Newcombe
mesh_terms: D019317:Evidence-Based Medicine; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D018401:Sample Size