AUTHOR=Duvuru Shyam , Sanker Vivek , Mishra Rajeeb Kumar , Sharma Arvind K. , Lim Shir Lynn , Baskar Nisha , Sharma Vijay K. TITLE=Ancillary tests for brain death JOURNAL=Frontiers in Neurology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2024.1491263 DOI=10.3389/fneur.2024.1491263 ISSN=1664-2295