On the cover: Daily numbers of disease onset showing the epidemic of COVID-19 in maintenance hemodialysis patients in Wuhan. Since the earliest date of disease onset on January 6, 2020, new cases of COVID-19 continuously increased and peaked on January 30, 2020. After comprehensive intervention measures have been taken from the end of January, the numbers of new cases rapidly declined and eventually diminished by March 10, 2020. Image supplied by Chun Zhang, Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology. Wuhan, China.