Association between adult body shape index and serum levels of the anti-aging protein Klotho in adults: a population-based cross-sectional study of the NHANES from 2007 to 2016 - Gong, Li; Xu, Jinghan; Zhuang, Yiyang; Zeng, Liwei; Peng, Zhenfei; Liu, Yuzhou; Huang, Yinluan; Chen, Yutian; Huang, Fengyi; Piao, Chunli (Frontiers in Endocrinology, 2025)