Where can I get a health certificate in Shanghai? The cheaper the better.

There is no 20, is there? I know a 39, which is already the cheapest. It is the Gumei Community Health Service Center in Minhang District. Address: No.668 Longming Road, get off at Lianhua Road Station of Metro 1 Line, and then walk for a few minutes 122 and get off at Pingyang Road, Longming Road. Quick check.