A Chinese ship-based medical helicopter returns to the naval hospital ship Hepingfangzhou on July 1, 2013, at the port of Male, capital of Maldives. It is the first time that the Chinese navy's medical helicopter was involved in a medical mission outside China. The helicopter concluded the mission the same day, diagnosing and treating more than 220 patients in Maldives. The mission started on July 1. [Photo/Xinhua]