The association between non-high-density lipoprotein cholesterol to high-density lipoprotein cholesterol ratio and pulmonary function: evidence from NHANES 2007–2012 - Liu, Miaoyan; Gao, Chaofeng; Li, Jinggeng; Zhang, Yibo; Gao, Rui; Yang, Chaoting; Zhang, Jian (Frontiers in Nutrition, 2025)