Frentz, D., Wensing, A., Albert, J., Paraskevis, D., Abecasis, A. B., Osamah, H., Jorgensen, L. B., Kücherer, C., Struck, D., Schmit, J.-C., & et al. (2013). Limited cross-border infections in patients newly diagnosed with HIV in Europe. Retrovirology, 10, 36. https://doi.org/10.1186/1742-4690-10-36 (Original work published 2013)