AUTHOR=Petria Iulia , Indirli Rita , Mantovani Beatrice , Lanzi Valeria , Mantovani Giovanna , Ferrante Emanuele TITLE=Recurrent hyponatremia due to syndrome of inappropriate antidiuresis after traumatic brain injury: two case reports JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1536247 DOI=10.3389/fendo.2025.1536247 ISSN=1664-2392