Longitudinal Screening Detects Cognitive Stability and Behavioral Deterioration in ALS Patients. Alzforum, 07 Dec 2018 Woolley S, Goetz R, Factor-Litvak P, Murphy J, Hupf J, Lomen-Hoerth C, Andrews H, Heitzman D, Bedlack R, Katz J, Barohn R…