O. Nilsen

Public health implications of an outbreak of rabies in arctic foxes and reindeer in the Svalbard archipelago, Norway, September 2011.

K. Handeland, L. Vold, E. Macdonald, 2011, Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin.

[Clostridium difficile infections].

J. Lassen, O. Nilsen, A. Stordahl, 1986, Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke.

Infections among injecting drug users in Norway, 1997-2000

E. Høiby, T. Hoel, O. Nilsen, 2001 .

A local outbreak of quinolone-resistant gonorrhoea in Norway, January 2008.

P. Aavitsland, I. Jakopanec, O. Nilsen, 2008, Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin.

Back-calculation based on HIV and AIDS registers in Denmark, Norway and Sweden 1977-95 among homosexual men: estimation of absolute rates, incidence rates and prevalence of HIV.

O. Aalen, P. Magnus, H. Stigum, 2000, Journal of Epidemiology and Biostatistics.