A helicopter transferring Gan Yu (back row, R) arrives at Luding County, southwest China's Sichuan Province, Sept. 21, 2022. Chinese hydropower station worker Gan Yu, who went missing for 17 days following a 6.8-magnitude earthquake in China's Sichuan Province, has been found alive. He was rescued by Ni Taigao, a local villager, on Wednesday and is receiving treatment at West China Hospital of Sichuan University. (Xinhua)

A helicopter, which is designated to transfer Gan Yu to Luding County of Sichuan Province, prepares to take off in Shimian County, southwest China's Sichuan Province, Sept. 21, 2022. Chinese hydropower station worker Gan Yu, who went missing for 17 days following a 6.8-magnitude earthquake in China's Sichuan Province, has been found alive. (Xinhua)

Medical workers check the health condition of Gan Yu at West China Hospital of Sichuan University in Chengdu, capital of southwest China's Sichuan Province, Sept. 21, 2022. Chinese hydropower station worker Gan Yu, who went missing for 17 days following a 6.8-magnitude earthquake in China's Sichuan Province, has been found alive. (Xinhua)

Medical workers prepare to check the health condition of Gan Yu at West China Hospital of Sichuan University in Chengdu, capital of southwest China's Sichuan Province, Sept. 21, 2022. Chinese hydropower station worker Gan Yu, who went missing for 17 days following a 6.8-magnitude earthquake in China's Sichuan Province, has been found alive. (Xinhua)

Medical workers discuss treatment plans for Gan Yu at West China Hospital of Sichuan University in Chengdu, capital of southwest China's Sichuan Province, Sept. 21, 2022. Chinese hydropower station worker Gan Yu, who went missing for 17 days following a 6.8-magnitude earthquake in China's Sichuan Province, has been found alive. (Xinhua)