Síndrome de Down por trisomía 21 parcial, enfermedad de Alzheimer y gen APP(Down syndrome, partial trisomy 21, and absence of Alzheimer’s disease: the role of APP) Eric Doran, David Keator, Elizabeth Head, Michael J. Phelan, Ron Kim, Minodora Totoiu, Jorge R. Barrio, Gary W. Small, Steven G. Potkin, Ira T.