Figure 3 Temporal trends in FALS incidence Temporal trends in FALS incidence Temporal trends in age-standardized FALS incidence for total FALS (A), definite FALS (B), probable ALS (C), and possible FALS (D). Temporal trends in age-standardized FALS incidence for total FALS compared with definite and probable FALS (E). ALS = amyotrophic lateral sclerosis; FALS = familial ALS. Marie Ryan et al. Neurol Genet 2018;4:e239 Copyright © 2018 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.