Which bus should Lanzhou Customs take to the Third Provincial Hospital?

Bus route: 18 → 143, the whole journey is about 20.9 kilometers.

1. Walk about 300 meters from Lanzhou Customs (Yin 'an Road) and arrive at the customs station.

2. Take the 18 bus, pass the 16 stop and arrive at Xiguan Cross Station.

3. Walk about 100 meters to Xiguan Cross Station.

4. Take the 143 bus, pass the 13 station and arrive at the Third People's Hospital (Duanjiatan) station.

5. Walk about 50 meters to the Third People's Hospital of Gansu Province.