Density homogeneity as a crucial CT indicator for differentiating malignant and benign subcentimeter solid pulmonary nodules: A retrospective multi-center study. - Zhang, Wen-tao; Gan, Hui; Luo, Wei; Zhao, Min; Ding, Can; Jiang, Xue-feng; Fu, Ting; Lv, Fa-jin; Chu, Zhi-gang (Insights into Imaging, 2026)