Trisomy 21: an international symposium, Convento delle Clarisse, Rapallo, Italy, November 8-10, 1979 - Burgio, G. R.; Anneren, G. (Berlin: Springer-Verlag, 1981)
Keywords: Down's syndrome -- Genetic aspects -- Congresses; Down's syndrome -- Congresses; Chromosomes, Human, 21 -- 22 -- Congresses; Trisomy -- Congresses