title: [50 years of periodontics in Spain].
authors.affiliation: Académico de Número, Real Academia de Medicina del País Vasco.
authors.forename: M
authors.initials: M
authors.lastname: Perona Alvaro
mesh_terms: D049668:History, 15th Century; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D010517:Periodontics / Q000266:history*; D013030:Spain