title: The effect of experimental design parameters on the determination of sample size.
authors.affiliation: Department of Periodontics, University of Alabama School of Dentistry, Birmingham.
authors.forename: M
authors.initials: M
authors.lastname: Jeffcoat
mesh_terms: D000704:Analysis of Variance; D002986:Clinical Trials as Topic / Q000379:methods* / Q000592:standards; D004341:Drug Evaluation / Q000379:methods*; D006801:Humans; D010361:Patients / Q000706:statistics & numerical data; D010518:Periodontitis / Q000188:drug therapy*; D010919:Placebos; D012107:Research Design; D012494:Sampling Studies; D013810:Therapeutic Equivalency; D013997:Time Factors
chemical_list: D010919:Placebos