All drawings, animations, photos (exc. the photos in the Gallery), video clips and the music are created, edited and composed by the authors of the Drugs e-Learning site. Up-to-date information was selected from many sources (books, web sites, interviews, etc.), analyzed and edited by the team of students and teachers. You can download the website and presentation, to use or redistribute them, without commercial purpouses, quoting the autors. Graphical elements from the website can be used with the agreement of the autors.