A woman holding a baby stands in front of a shelf displaying milk powder products at a supermarket in Beijing May 20, 2013. China's domestic milk powder firms are showing signs of a comeback, boosting their international credentials to escape the long shadow of a deadly melamine scandal in 2008, creating a potential challenge to the multinationals who currently dominate the booming sector. Picture taken May 20, 2013. REUTERS/Kim Kyung-Hoon (CHINA - Tags: BUSINESS FOOD)