Isometric force pillow: using air pressure to quantify involuntary finger flexion in the presence of hypertonia. - Caitlyn E. Seim; Chuzhang Han; Alexis J. Lowber; Claire Brooks; Marie Payne; Maarten G. Lansberg; Kara E. Flavin; Julius P. A. Dewald; Allison M. Okamura (CoRR, 2020)