Combination and Interaction of Seven Trace Elements and the Risk of Protein-Energy Malnutrition in School-Aged Children in Shenzhen, China - Mingtao Yu; Leyun Tan; Yuhui Chen; Jianhui Shang; Yingbin You; Haiming Xie; Nan Pang; Rimei Liang; Qingying Zhang (Biological Trace Element Research, 2025)