The ratio of blood urea nitrogen to high-density lipoprotein cholesterol: a novel risk-stratifying tool for infective endocarditis. - Wang, Qi; Li, Jing-wen; Che, Shuai-zheng; Huang, Jie-leng; Jiang, Mei; Lu, Jun-quan; Wu, Di; Yu, Dan-qing; Wei, Xue‑biao (Lipids in Health & Disease, 2025)