title: Whatever happened to the notion of controlled experiments?
authors.forename: M I
authors.initials: MI
authors.lastname: Gurr
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods / Q000639:trends*; D004041:Dietary Fats / Q000009:adverse effects; D006801:Humans; D012107:Research Design
chemical_list: D004041:Dietary Fats