title: What is a factorial study design?
authors.affiliation: Institute for Medical and Biomedical Education, St George's, University of London, London, UK p.sedgwick@sgul.ac.uk.
authors.forename: Philip
authors.initials: P
authors.lastname: Sedgwick
mesh_terms: D016638:Critical Illness; D004311:Double-Blind Method; D005973:Glutamine / Q000627:therapeutic use; D006801:Humans; D017053:Infection Control; D010288:Parenteral Nutrition; D011897:Random Allocation; D016032:Randomized Controlled Trials as Topic / Q000706:statistics & numerical data*; D012107:Research Design; D012643:Selenium / Q000627:therapeutic use; D013223:Statistics as Topic; D014131:Trace Elements / Q000627:therapeutic use
chemical_list: D014131:Trace Elements; D005973:Glutamine; D012643:Selenium