1. Division of Nephrology and Dialysis; Soma Central Hospital; Fukushima Japan
2. Department of Disaster and Comprehensive Medicine; Fukushima Medical University; Fukushima Japan
3. Department of Urology; Fukushima Medical University; Fukushima Japan
4. Department of EBM Research; Kyoto University Hospital; Kyoto Japan
5. Department of Epidemiology; Fukushima Medical University; Fukushima Japan
6. Iwaki Meisei University; Fukushima Japan