Isaacs, J. D., Garden, O. A., Kaur, G., Collinge, J., Jackson, G. S., & Altmann, D. M. The cellular prion protein is preferentially expressed by CD4+ CD25+ Foxp3+ regulatory T cells. Immunology, 125(3), 313-9. https://doi.org/10.1111/j.1365-2567.2008.02853.x