- Prevalence of granulocytic Ehrlichia and Borrelia burgdorferi sensu lato in Ixodes ricinus ticks collected from Southwestern Finland and from Vormsi Island in Estonia. Mäkinen, J., Vuorinen, I., Oksi, J., Peltomaa, M., He, Q., Marjamäki, M., Viljanen, M.K. APMIS (2003)