1. Take Metro Line 3 (Blue Line) at Shanghai Railway Station and get off at Zhenping Road Station.

Don't leave the station, wait for Metro Line 4 (red line) in the station.

3. After the arrival of Metro Line 4, transfer to the outer ring of Metro Line 4 at the same platform (that is, the direction is Zhongtan Road).

4. Get off at Hongqiao Road Station, walk about 645 meters after leaving the station, and you can reach Shanghai Chest Hospital.

The whole journey takes about 32 minutes. If you need more detailed route information, I suggest you consult the relevant staff of the subway station or Shanghai Chest Hospital.