Genetic variants in the leptin-melanocortin pathway and their joint effects with physical activity and sleep duration on risk of childhood obesity - Xiaotong Liang; Shun Pan; Jiting Ji; Yuying Deng; Miao Chen; Ziwei Huang; Jiaru Deng; Min Chen; Tiantian Xiong; Jianping Liang; Li Liu (PLoS ONE, 2026)