title: Hands down: reflecting on the 50th anniversary of the description of Trisomy 21.
authors.affiliation: 5415 Briggs Avenue, La Crescenta, CA 91214, USA. riccardi@medconsumer.com
authors.forename: Vincent M
authors.initials: VM
authors.lastname: Riccardi
mesh_terms: D004314:Down Syndrome / Q000235:genetics / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans