Jenum, P. A., Stray-Pedersen, B., Melby, K. K., Kapperud, G., Whitelaw, A., Eskild, A., & Eng, J. (1998). Incidence of Toxoplasma gondii Infection in 35,940 Pregnant Women in Norway and Pregnancy Outcome for Infected Women. American Society for Microbiology.

Jenum, Pål A., Babill Stray-Pedersen, Kjetil K. Melby, Georg Kapperud, Andrew Whitelaw, Anne Eskild, and Jan Eng. Incidence of Toxoplasma Gondii Infection in 35,940 Pregnant Women in Norway and Pregnancy Outcome for Infected Women. American Society for Microbiology, 1998.

Jenum, Pål A., et al. Incidence of Toxoplasma Gondii Infection in 35,940 Pregnant Women in Norway and Pregnancy Outcome for Infected Women. American Society for Microbiology, 1998.