User talk:Khai279

Welcome to Wikipedia. Everyone is welcome to contribute to the encyclopedia, but when you add or change content, as you did to the article Ageing, please cite a reliable source for the content of your edit. This helps maintain our policy of verifiability. Take a look at Citing sources for information about how to cite sources and the welcome page to learn more about contributing to this encyclopedia. Thank you. --CliffC (talk) 17:04, 18 January 2011 (UTC)