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Parasitology|June 1, 1980
Homologous and heterologous resistance in Echinostoma revolutum infections in miceS B Sirag, N O Christensen, F Frandsen, et al.Zeitschrift Fur Parasitenkunde (Berlin, Germany)|July 27, 1976
Studies on the infectivity of Fasciola hepatica miracidia to Lymnaea truncatula. Attachment and penetration of miracidia into non-infected and infected snailsN O Christensen, P NansenThe Journal of Parasitology|October 1, 1976
The influence of temperature on the infectivity of Fasciola hepatica miracidia to Lymnaea truncatulaN O Christensen, P NansenBulletin of the World Health Organization|January 1, 1977
Effect of Helisoma duryi on the survival, growth, and cercarial production of Schistosoma mansoni-infected Biomphalaria glabrataF Frandsen, N O ChristensenActa Tropica|October 1, 1990
Acquired resistance in goats following a single primary Schistosoma bovis infectionJ Monrad, N O Christensen, P NansenZeitschrift Fur Parasitenkunde (Berlin, Germany)|December 29, 1977
Stereoscan studies of rediae, cercariae, cysts, excysted metacercariae and migratory stages of Fasciola hepaticaM Køie, P Nansen, N O ChristensenJournal of Helminthology|March 1, 1985
A comparison of the efficiency of the percutaneous and per-oral routes of infection in caprine Schistosoma bovis infectionsA Kassuku, P Nansen, N O ChristensenZeitschrift Fur Parasitenkunde (Berlin, Germany)|December 30, 1976
Stereoscan studies of eggs, free-swimming and penetrating miracidia and early sporocysts of Fasciola hepaticaM Koie, N O Christensen, P NansenZeitschrift Fur Parasitenkunde (Berlin, Germany)|January 1, 1983
Studies on the relationship between Schistosoma and their intermediate hosts. V. The genus Bulinus and Schistosoma bovis from Iringa, TanzaniaA Mutani, N O Christensen, F FrandsenThe Journal of Parasitology|August 1, 1984
Trypanosoma brucei-induced blockage of expulsion of Echinostoma revolutum and of homologous E. revolutum resistance in miceN O Christensen, B O Fagbemi, P NansenPageof 35