Risk Prediction Model for Arteriovenous Fistula Maturation Failure in Elderly Diabetic Patients: Limitations and Future Directions [Response to Letter]

Shuangyan Liu,1,* Xiaojie He,1,* Yaqing Wang,2,* Yuqing Wang,1,* Xiaodong Li3 1Graduate School of Hebei Medical University, Shijiazhuang, Hebei, 050017, People’s Republic of China; 2Graduate School of Chengde Medical University, Chengde, Hebei, 067000, People’s Republic of China; 3Department of Nephrology, Baoding No 1 Central Hospital of Hebei Medical University, Baoding, Hebei, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xiaodong Li, Department of Nephrology, Baoding No.1 Central Hospital of Hebei Medical University, Baoding Great Wall North Street No 320, Baoding, Hebei, 071000, People’s Republic of China, Email [email protected]