Stratification methods in caries clinical trials.
D000293:Adolescent; D002648:Child; D002986:Clinical Trials as Topic / Q000379:methods*; D003731:Dental Caries / Q000517:prevention & control*; D005459:Fluorides / Q000008:administration & dosage; D006801:Humans; D008954:Models, Biological; D009067:Mouthwashes; D010919:Placebos; D011897:Random Allocation; D012107:Research Design; D013223:Statistics as Topic
D009067:Mouthwashes; D010919:Placebos; D005459:Fluorides