P1‐357: MEDIAN SURVIVAL IN MEMORY CLINIC COHORT IS SHORT, EVEN IN YOUNG‐ONSET DEMENTIA. (1st July 2006) - Rhodius- Meester, Hanneke FM.; Tijms, Betty M.; Lemstra, Evelien; Prins, Niels D.; Pijnenburg, Yolande A.L.; Bouwman, Femke H.; Scheltens, Philip; Van der Flier, Wiesje M.