Titus, RG., Marchand, M., Boon, T., & Louis, JA. (1985). A Limiting Dilution Assay for Quantifying Leishmania-major in Tissues of Infected Mice. Parasite Immunology, 7(5), 545-555. https://doi.org/10.1111/j.1365-3024.1985.tb00098.x (Original work published 1985)