China's Bird Flu Outbreak Cost $6.5bn
Reuters, May 22, 2013
http://www.ft.com/intl/cms/s/0/7dcc4eb6-c27d-11e2-ab66-00144feab7de.html
调查发现国内缺乏成人体内重金属含量权威调查 (Survey: China Lacks Reliable Methods to Test Heavy Metals in Human Body)
The First Business and Financial Daily, May 22, 2013
http://news.sina.com.cn/c/2013-05-22/054427189912.shtml