Progranulin mutations and amyotrophic lateral sclerosis or amyotrophic lateral sclerosis-frontotemporal dementia phenotypes

J. C. Schymick, Y. Yang, P. M. Andersen, J. P. Vonsattel, M. Greenway, P. Momeni, J. Elder, A. Chiò, G. Restagno, W. Robberecht, C. Dahlberg, O. Mukherjee, A. Goate, N. Graff-Radford, R. J. Caselli, M. Hutton, J. Gass, A. Cannon, R. Rademakers, A. B. SingletonO. Hardiman, J. Rothstein, J. Hardy, Bryan J. Traynor