AUTHOR=Wu Hongying , Meng Shizhu , Sun Dingwei , Hu Yuting , Wu Tingou , Wang Xiaohuan , Wang Xingren , Liu Ying , Peng Chuyan , He Bin , Meng Fangang TITLE=Does the island area also need to insist on salt iodization to prevent iodine deficiency disorders? a cross-sectional survey in Hainan Province, China JOURNAL=Frontiers in Endocrinology VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/endocrinology/articles/10.3389/fendo.2025.1536506 DOI=10.3389/fendo.2025.1536506 ISSN=1664-2392