N. J. Nielsen

HIV antibodies in Danish Volunteer Service personnel in Kenya, Tanzania and Zambia.

B. Lindhardt, K. Ulrich, N. J. Nielsen, 1987, Transactions of the Royal Society of Tropical Medicine and Hygiene.

Recent Results from Investigations of Transportation of Pigs for Slaughter

N. J. Nielsen, 1982 .

Primary and secondary resistance of mycobacterium tuberculosis in Eastern Botswana.

N. J. Nielsen, 1979, Tubercle.