We welcome you to choose the National Kidney Disease Clinical Medical Research Center and thank you for your recognition and trust in us. In addition, the following issues are special reminders: 1. To see a patient by appointment, 24-hour urine, morning urine, and blood specimens must be sent 1 day in advance to ensure that you can be seen normally the next day; specimens cannot be sent on Sundays; patients who travel a long way are advised to arrive in Nanjing 2 days in advance. 2. Biological specimens can be collected at the same time as clinical specimens; patients who have had two consecutive urine protein quantifications need to keep one 24-hour urine after the regular specimens are collected and sent for testing. 3. Pay attention to the safety of your person and belongings during outpatient visits, and do not trust social workers to refer you to other medical institutions to avoid being deceived and delaying the treatment of your condition. 4. Ask family members to accompany the patient to the clinic before the physical condition has recovered well.