• PA Media (May 11, 2022)
  • AFP Relaxnews (January 16, 2015)
  • Canadian Press (January 15, 2015)
  • Agence Science-Presse (May 8, 2014)
  • Canadian Press (April 29, 2014)
  • UPI (April 28, 2014)
  • Reuters (July 20, 2010)
  • Agence Science-Presse (May 18, 2010)
  • CanWest News Service (May 9, 2010)
  • UPI (July 5, 2006)
  • CanWest News Service (June 29, 2006)
  • CanWest News Service (August 11, 2005)
  • UPI (March 25, 2003)
  • Reuters (March, 24, 2003)
  • UPI (February 20, 2000)
  • Reuters (February 20, 2000)
  • Reuters (August 27, 1999)