Winners of the 2008 Nobel Prize for medicine or physiology, French scientists Luc Montagnier (L-R) and Francoise Barre-Sinoussi for their discovery of the virus that causes AIDS, and German scientist Harald zur Hausen for his work into the cause of cervical cancer, pose before a news conference in Stockholm December 6, 2008. The Nobel awards will be presented at a ceremony in Stockholm on December 10. REUTERS/Bob Strong (SWEDEN)