A proposal for new diagnostic criteria for ALS. Issue 8 (August 2020) - Shefner, Jeremy M.; Al-Chalabi, Ammar; Baker, Mark R.; Cui, Li-Ying; de Carvalho, Mamede; Eisen, Andrew; Grosskreutz, Julian; Hardiman, Orla; Henderson, Robert; Matamala, Jose Manuel; Mitsumoto, Hiroshi; Paulus, Walter; et al.