Volunteers are seen outside the venue of the Global Health Forum of Boao Forum for Asia in Qingdao, east China's Shandong Province, June 11, 2019. Themed with "Universal Health Coverage," "Innovation" and "Health in All Policies," the three-day forum will focus on Internet plus healthcare, the industrial transformation of technology innovations, traditional medicine and the development of the health service industry. (Xinhua/Li Ziheng)