A nurse distributes supper to Tibetan children with congenital heart diease and their parents at the Guangzhou General Hospital of the Guangzhou Military Zone in Guangzhou, capital of south China's Guangdong Province, March 26, 2014. Some 17 Tibetan children with congenital heart disease from Qamdo Prefecture of southwest China's Tibet Autonomous Region will receive free treatment at the hospital, part of a charity program aimed at curing 1,000 children with the disease in poor families in ethnic-dominated areas. [Photo/Xinhua]

A nurse carries an infant who is less than one year old and suffers from congenital heart diease to the patient room at the Guangzhou General Hospital of the Guangzhou Military Zone in Guangzhou, capital of south China's Guangdong Province, March 26, 2014. Some 17 Tibetan children with congenital heart disease from Qamdo Prefecture of southwest China's Tibet Autonomous Region will receive free treatment at the hospital, part of a charity program aimed at curing 1,000 children with the disease in poor families in ethnic-dominated areas. [Photo/Xinhua]

Nurses the Guangzhou General Hospital of the Guangzhou Military Zone accompany Tibetan children with congenital heart diease to walk out of Baiyun Airport in Guangzhou, capital of south China's Guangdong Province, March 26, 2014. Some 17 Tibetan children with congenital heart disease from Qamdo Prefecture of southwest China's Tibet Autonomous Region will receive free treatment at the hospital, part of a charity program aimed at curing 1,000 children with the disease in poor families in ethnic-dominated areas. [Photo/Xinhua]

A nurse sends an infant who is less than one year old and suffers from congenital heart diease to her mother at the Guangzhou General Hospital of the Guangzhou Military Zone in Guangzhou, capital of south China's Guangdong Province, March 26, 2014. Some 17 Tibetan children with congenital heart disease from Qamdo Prefecture of southwest China's Tibet Autonomous Region will receive free treatment at the hospital, part of a charity program aimed at curing 1,000 children with the disease in poor families in ethnic-dominated areas.[Photo/Xinhua]

Nurses the Guangzhou General Hospital of the Guangzhou Military Zone accompany Tibetan children with congenital heart diease to walk out of Baiyun Airport in Guangzhou, capital of south China's Guangdong Province, March 26, 2014. Some 17 Tibetan children with congenital heart disease from Qamdo Prefecture of southwest China's Tibet Autonomous Region will receive free treatment at the hospital, part of a charity program aimed at curing 1,000 children with the disease in poor families in ethnic-dominated areas.[Photo/Xinhua]

                            Editor: Julia Qin