If you are at Wudaokou, you can take 33 1 to the Third Hospital of Beijing Medical University, but there is no need to go to such a good hospital to get a health certificate, because there are many people and it is a waste of time. So I recommend you go to Zhongguancun Hospital, take bus No.466 (to Zhongguancun South) at Dongsheng Garden, and get off at the penultimate stop ... Zhongguancun Hospital is just across the street. Or take the express train 1 10 in Tsinghua campus, get off at the west exit of Haidian South Road (it seems to be this station, ask the conductor how to get to Haidian Hospital after getting on the bus), and go to Haidian Hospital. Or take any bus to Xiyuan at Wudaokou and go to Xiyuan Hospital.