A cross-sectional study exploring relationships between triglyceride glucose index, atherogenic index of plasma, and chronic pain: NHANES 1999–2004. - Yan, Zi; Zhang, Hongyu; Liu, Shumei; Cui, Jian; Zhu, Yanfei; Zhao, Guoxu; Liu, Renwei; Cui, Rongjun (Lipids in Health & Disease, 2025)