Marks, F., Evans, J., Meyer, C. G., Browne, E. N., Flessner, C., von Kalckreuth, V., . . . May, J. (2005). High Prevalence of Markers for Sulfadoxine and Pyrimethamine Resistance in Plasmodium falciparum in the Absence of Drug Pressure in the Ashanti Region of Ghana. Antimicrob Agents Chemother.

Marks, Florian, Jennifer Evans, Christian G. Meyer, Edmund N. Browne, Christa Flessner, Vera von Kalckreuth, Teunis A. Eggelte, Rolf D. Horstmann, ja Jürgen May. "High Prevalence of Markers for Sulfadoxine and Pyrimethamine Resistance in Plasmodium Falciparum in the Absence of Drug Pressure in the Ashanti Region of Ghana." Antimicrob Agents Chemother 2005.

Marks, Florian, et al. "High Prevalence of Markers for Sulfadoxine and Pyrimethamine Resistance in Plasmodium Falciparum in the Absence of Drug Pressure in the Ashanti Region of Ghana." Antimicrob Agents Chemother 2005.