2014
(news in English, French and German)
16 May 2014 (CTV News)
21 April 2014 (New York Times)
8 April 2014 (USA Today)
7 April 2014 (National Geographic)
7 April 2014 (Smithsonian)
2 April 2014 (The Washington Post)
19 March 2014 (New York Times)
19 March 2014 (BBC Health News)
10 March 2014 (Info France)
3 March 2014 (Boston Globe)
25 Feb 2104 (Universit盲t Z眉rich)