Maixner, F., Krause-Kyora, B., Turaev, D., Herbig, A., Hoopmann, M. R., Hallows, J. L., et al. (2016). The 5300-year-old Helicobacter pylori genome of the Iceman. Science, 351(6269), 162-165. doi:10.1126/science.aad2545.