Janna D. Helfrich, Jerzy Szaflarski, Marianne C. J. Nævra, Luis Romunstad, Matthew P. Walker, Bryce A. Mander, Robert T. Knight, Pål G. Larsson, Randolph F. Helfrich. "Spectral mapping reveals a resemblance of the anesthetic brain state to both sleep and coma." Proceedings of the National Academy of Sciences (2026). https://doi.org/10.1073/pnas.2514098123