RT Journal Article SR Electronic T1 Spastic paraparesis and atypical dementia caused by PSEN1 mutation (P264L), responsible for Alzheimer's disease JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP e2 OP e2 DO 10.1136/jmg.39.2.e2 VO 39 IS 2 A1 M-L Jacquemont A1 D Campion A1 V Hahn A1 C Tallaksen A1 T Frebourg A1 A Brice A1 A Durr YR 2002 UL http://jmg.bmj.com/content/39/2/e2.abstract AB