Association of serum urea-to-creatinine and creatinine-to-cystatin C ratios with bone mineral density and osteoporosis: a cross-sectional study

L Liansheng Shao S Shuai Chen Y Yuheng Wu L Lu Chen Y Yu Zhang (Xiangya Hospital, Central South University Changsha China) Y Yuqing Zhou J Jiachen Zhang (Department of Infectious Disease, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China) G Guicheng Huang P Pengfei Sun (College of Materials) W Wen Min