Doctor He Shiying (1st R) asks a sick boy about his health in Meipo Village of Dahejia Township in the Baoan-Dongxiang-Salar Autonomous County of Jishishan, northwest China's Gansu Province, Aug. 15, 2018. (Photos: Xinhua)

Doctor Wang Guilin dispenses herbs according to a traditional Chinese medicine prescription in Yueming Village of Mawu County in Pingliang, northwest China's Gansu Province, Aug. 15, 2018.

Doctor Liang Chunrong makes his way up a sand dune in Arxiang Township of Zhangwu County, Fuxin, northeast China's Liaoning Province, Jan. 25, 2018.

Doctor Sun Qingyong (R) gives a patient intravenous injection at a clinic in Shaluo Village of Guanghuojie Township in Ningshan County, Ankang, northwest China's Shaanxi Province, Aug. 15, 2018.

Doctor Wang Guilin gives dosage instructions to a patient in Yueming Village of Mawu County in Pingliang, northwest China's Gansu Province, Aug. 15, 2018.

Doctor Li Yan makes his way to call on patients in Shanxia Village of Guangchang County, east China's Jiangxi Province, April 17, 2018.

Doctor Li Shaoyou rows a boat on his way to a patient's home in Mudundao Village of Bancheng Township, Sihong County, east China's Jiangsu Province, June 27, 2018.

Doctor Wu Huaiying is on her way to call on patients in Dazhai Village of Liping County in the Miao-Dong Autonomous Prefecture of Qiandongnan, southwest China's Guizhou Province, Aug. 16, 2018.

Doctor Yue Yanwei (L) conducts health check for a villager in Qixin Village of Gangyao Township, Jilin, northeast China's Jilin Province, Aug. 9, 2018.

Doctor Liang Chunrong treats patients in Arxiang Township of Zhangwu County, Fuxin, northeast China's Liaoning Province, Jan. 25, 2018.