is a derivative work of the following images: File:Influenza_geneticshift.jpg licensed with Cc-by-sa-3.0-migrated, GFDL, GFDL-user-en-no-disclaimers 2009-02-28T09:44:32Z...
Released under the GNU Free Documentation License. Other versions Derivative works of this file: Canvi antigènic.jpg Influenza geneticshift.svg...
