[Annual 18 Congress of the ORCA in Aarhus (Denmark) 7-2--7-4 1971].
D003226:Congresses as Topic; D003718:Denmark; D003731:Dental Caries; D006801:Humans; D007391:International Cooperation
Doroczny 18 kongres ORCA--Aarhus (2--4.VII.1971.