Then, from 1980 to 1990, he was an assistant professor at Rikshospitalet, and from 1990 to 1995 he worked for the private company Nycomed2, mainly within contrast media development.
Helge Karlsen | Helge Holden | Helge Schneider | Helge Sander | Helge Nielsen | Helge Ingstad | Paal-Helge Haugen | Helge Skoog | Helge Sivertsen | Helge Seetzen | Helge Rosvaenge | Helge Ness | Helge Jordal | Helge Haugen |