1 Tsinghua Clinical Research Institute, School of Medicine, Tsinghua University, Beijing, China; School of Medicine and Vanke School of Public Health, Tsinghua University, Beijing, China.
2 Peking Union Medical College Hospital, Beijing, China.
3 School of Medicine, Tsinghua University, Beijing, China.
4 School of Medicine and Vanke School of Public Health, Tsinghua University, Beijing, China. Electronic address: zhanglinqi@tsinghua.edu.cn.