TY - BOOK AU - Burgio,G.R. AU - Anneren,G. TI - Trisomy 21: an international symposium, Convento delle Clarisse, Rapallo, Italy, November 8-10, 1979 SN - 0387106537 PY - 1981/// CY - Berlin PB - Springer-Verlag KW - Down's syndrome KW - Genetic aspects KW - Congresses KW - Chromosomes, Human, 21 KW - 22 KW - Trisomy ER -