Pilar López-Úbeda Teodoro Martín-Noguerol Antonio Luna Environmental and economic costs behind LLMs. 2026 March 661-663 21 Int. J. Comput. Assist. Radiol. Surg. 3 https://doi.org/10.1007/s11548-026-03568-5 db/journals/cars/cars21.html#LopezUbedaML26 streams/journals/cars