Wearable device and smartphone data quantify ALS progression and may provide novel outcome measures. - Stephen A. Johnson; Marta Karas; Katherine M. Burke; Marcin Straczkiewicz; Zoe A. Scheier; Alison P. Clark; Satoshi Iwasaki; Amir Lahav; Amrita S. Iyer; Jukka-Pekka Onnela; James D. Berry (npj Digit. Medicine, 2023)