528,750 RICCI V./red./ X World Congress of Oterhinelaryngalegy. Venice,May 21-25.1973. Org, by the Sacieta Italiana di Oterinelaryngolegia e di Patelegía Cervice-Facciale,member ef the IFOS... Abstracta.Ed.: M.Arslan ln cellab. with V. Ricci and D.F.N. Harrisen. Amsterdam 1973 Excerpta Medica 8o s. nlb. VII, alb. 1, 330. Excerpta Medica International Congress Series nr 276