1. Open the mobile phone WeChat client and search for XX electronic health card.
2. On the pop-up page, read the corresponding precautions carefully and click Close.
3. If you already have an account, click a button to authorize login to the application page.
4. To use the corresponding service, you need to click Open Location Service to allow the client to use the geographic location.
Next, you need to enter your ID number, and then click Next.
6. Enter the main interface options, and find the product series agent options on the right.
7. Click on the relationship below to select the parent-child relationship, enter the corresponding location information, and click Submit.