1. Department of Nephrology, the Attached Hospital of Inner Mongolia Medical University, Hohhot, China
2. School of Public Health, Inner Mongolia Medical University, Hohhot, China
3. Department of Education, the Attached Hospital of Inner Mongolia Medical University, Hohhot, China
4. Inner Mongolia International Mongolian Hospital, Hemodialysis Room, Hohhot, China
5. Department of Nephrology, Hohhot First Hospital, Hohhot, China
6. Department of Nephrology, Inner Mongolia People’s Hospital, Hohhot, China