Mi Rong, a doctor of Beijing Children's Hospital, diagnoses a child patient at Zuogaimanma Township in Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province, Aug. 23, 2012. A volunteer group composed of doctors from Beijing, capital of China, arrived at the township on Wednesday, offering medical service for farmers and herdsmen of Tibetan ethnic group. (Xinhua/He Junchang)
