title: Little red wagons aside, symposium ponders the 'valid' outcomes of periodontal research.
authors.forename: T E
authors.initials: TE
authors.lastname: O'Hehir
mesh_terms: D003226:Congresses as Topic; D018865:Dental Research; D006801:Humans; D017063:Outcome Assessment, Health Care; D010517:Periodontics; D012107:Research Design