1. P 48 The time of the ALSFRS-R to decrease to 50% (D50) in a sigmoidal decay model sufficiently describes the complete disease course of amyotrophic lateral sclerosis. Issue 10 (October 2017) Authors: Stubendorff, B.; Grehl, T.; Neuwirth, C.; Rödiger, A.; Gunkel, A.; Radscheidt, M.; Ilse, B.; Prell, T.; Witte, O.W.; Weber, M.; Grosskreutz, J. Journal: Clinical neurophysiology Issue: Volume 128:Issue 10(2017:Oct.) Page Start: e353 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗