1. Nephro-Urology and Dialysis Center, Bach Mai hospital, Hanoi, Vietnam
2. Department of Nephrology and Hemodialysis, Military Hospital 103, Ha Noi, Vietnam
3. National Institute of Mental Health, Bach Mai Hospital, Department of Psychiatry, Hanoi Medical University, Ha Noi, Vietnam
4. Department of postgraduate training management, Hanoi Medical University, Hanoi, Vietnam