KECK SCHOOL OF MEDICINE OF USC IMAGE: HUMAN INDUCED MOTOR NEURONS THAT ARE LABELED WITH A MOTOR NEURON MARKER HB9 IN GREEN AND A NEURON MARKER TUJ1 IN PURPLE. CREDIT: ICHIDA LAB Each year in the U.S., 5,000 patients receive a diagnosis of ALS, an incurable neurodegenerative disease that will likely kill them within two...