Photoplethysmography as a noninvasive surrogate for microneurography in measuring stress-induced sympathetic nervous activation - A machine learning approach. - Saifur Rahman 002; Radhagayathri K. Udhayakumar; David Kaplan; Brendan McCarthy; Tye Dawood; Nicholas Mellor; Alexander Senior; Vaughan G. Macefield; Dilpreet Buxi; Chandan K. Karmakar (Comput. Biol. Medicine, 2025)