Quantitative MRI brain volumetry in a Swedish family with the APP 670/671 mutation : P. Julin, O. Almqvist, H. Basun, L. Lannfelt, A. Nordberg, M. Shigeta and L.O. Wahlund. Alzheimer's Disease Research Centre, Dept. Geriatric medicine, Karolinska Institutet, Huddinge University Hospital, S-141 86 Huddinge, Sweden