Large Language Model Symptom Identification From Clinical Text: Multicenter Study. - McMurry, Andrew J; Phelan, Dylan; Dixon, Brian E; Geva, Alon; Gottlieb, Daniel; Jones, James R; Terry, Michael; Taylor, David E; Callaway, Hannah; Manoharan, Sneha; Miller, Timothy; Olson, Karen L; et al. (Journal of Medical Internet Research, 2025)