Ahmed, Rebekah M COG-01 Phenotypic variation in ALS-FTD and effect on survival. [electronic resource] - Amyotrophic lateral sclerosis & frontotemporal degeneration Nov 2019 - 301-308 p. digital Publication Type: Journal Article ISSN: 2167-9223 Standard No.: 10.1080/21678421.2019.1647000 doi