Affiliation: | 1. Department of Neurology, Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, 630 W 168th Street, P&S Building, Room 5-423, New York, NY 10032, USA;2. Eleanor and Lou Gehrig ALS Center, Columbia University Irving Medical Center, 630 W 168th Street, P&S Building, Room 5-423, New York, NY 10032, USA |