title: An example of the importance of experimental design and statistical analysis in dental research.
mesh_terms: D001345:Autoradiography; D003348:Cortisone / Q000494:pharmacology; D005163:Factor Analysis, Statistical; D009874:Operations Research; D010519:Periodontium / Q000187:drug effects; D011336:Probability; D013223:Statistics as Topic
chemical_list: D003348:Cortisone