No New H7N9 Cases in China for a Week
South China Morning Post, May 21, 2013
http://www.scmp.com/news/china/article/1242626/no-new-h7n9-cases-china-week
白领猝死引职场幸福感讨论 幸福或与工龄成正比 (Survey Prompted by Sudden Deaths among White Collar Workers Shows Professionals Under 25 Least Happy)
China News Service, May 21, 2013
http://www.bjnews.com.cn/news/2013/05/21/264827.html
专家称我国不孕不育患者已超4000万 (Expert Says Stress and Overwork among Chief Causes of 40 Million Infertile in China)
Evening News, May 21, 2013
http://news.sina.com.cn/c/2013-05-21/132027184381.shtml