About 36 minutes. According to Baidu map query, Tang Dou Hospital is 26.0 kilometers away from Xi 'an North Station, and it takes about 36 minutes by car. The predecessor of Tang Dou Hospital was Yan 'an Central Hospital, which was established in 1939. 1955 transferred to the teaching hospital of the fourth military medical university. 1958 was approved by the general staff as the second affiliated hospital of the fourth military medical university. 1985, with the approval of the General Staff, it was renamed Tang Dou Hospital. 20 17 was transferred to the Air Force with the school and renamed as the Second Affiliated Hospital of Air Force Military Medical University. It is a medical, teaching and scientific research center. Xi 'an North Railway Station, located in weiyang district, Xi City, Shaanxi Province, China, is a special station, which belongs to China Railway Xi 'an Bureau Group Co., Ltd., and started construction on September 19, 2008, and was put into use on 10/day. Xi North Station is 2 km away from the bell tower12 in the downtown of Xi, 3km away from the administrative center of Xi and 20km away from Xi Xianyang International Airport. It is the most important and largest railway passenger hub in the northwest of China, and it is also one of the main passenger stations of Xi Railway Hub.