Apolipoprotein E epsilon 4 allele frequency and age at onset of Alzheimer's disease

Yvonne Davidson, Linda Gibbons, Antonia Pritchard, Jayne Hardicre, Joanne Wren, Cheryl Stopford, Camille Julien, Jennifer Thompson, Antony Payton, Stuart M. Pickering-Brown, Neil Pendleton, Michael A. Horan, Alistair Burns, Nitin Purandare, Corinne L. Lendon, David Neary, Julie S. Snowden, David M. A. Mann