Yao Lumei (R), who was wounded in the July 5 riot, presents flowers to doctor Zhang Dekuan for his careful attendance before she leaves the hospital in Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, July 15, 2009. Twelve of the twenty-two people who received treatment in the 23rd Hospital of the People's Liberation Army (PLA) after being wounded in the July 5 riot in Urumqi left the hospital on Wednesday as they recovered from the wounds.