Prevalence of four species of Borrelia burgdorferi sensu lato and coinfection with Anaplasma phagocytophila in Ixodes ricinus ticks in central Germany - Hildebrandt, A; Schmidt, KH; Wilske, B; Dorn, W; Straube, E; Fingerle, V (Eur J Clin Microbiol Infect Dis, 2003)