Which bus should I take from Gaoling to Xi 'an Chengbei Hospital?

The specific route is: Gaoling District, walk 520 meters, get on at Nanxin Street Cross Station, get off at No.29 Station of 3 18 Road, get off at Yuanshuo Avenue Station of Beichen Road, walk 190 meters, get on at Yuanshuo Avenue Station of Beichen Road, get on at No.4 Station of 267 Road, get off at Taihua Road North Road Station in arid area, and walk 50 meters to Xi 'an Chengbei Hospital.

Xi 'an Chengbei Hospital is a secondary general hospital approved by Xi's Health and Health Commission. It is the designated hospitals for medical insurance for employees and urban and rural residents in the whole province and Shaanxi Province, the designated hospitals for medical insurance for employees of provincial organs and institutions in Shaanxi Province, the designated hospitals for medical insurance for employees in xi City, the designated hospitals for medical insurance for urban and rural residents in xi City, the designated hospitals for maternity insurance for employees in Xi City, and the designated medical institutions for outpatient chronic diseases in Xi City and rural residents. It is an institution designated by weiyang district to apply for health certificates free of charge. It has been rated as "Member Unit of Western Child Development Alliance" and "Demonstration Base of Prenatal Education" in Shaanxi Province.