Erratum to simple pre-procedure risk stratification tool for contrast-induced nephropathy

Zhonghan Ni, Yan Liang, Nianjin Xie, Jin Liu, Guoli Sun, Shiqun Chen, Jianfeng Ye, Yibo He, Wei Guo, Ning Tan, Jiyan Chen, Yong Liu, Zhujun Chen, Shouhong Wang