title: [Report of a symposium of the Periodontics Society of the German Democratic Republic and the Periodontics Section of the Polish Stomatology Society].
mesh_terms: D003226:Congresses as Topic; D005859:Germany, East; D007391:International Cooperation; D010517:Periodontics; D011044:Poland; D012953:Societies, Dental
vernacular_title: Sprawozdanie z wspólnego sympozjum Towarzystwa Parodontologii NRD i sekcji parodontologii Polskiego Towarzystwa Stomatologicznego