Dientamoeba fragilis – the most common intestinal protozoan in the Helsinki Metropolitan Area, Finland, 2007 to 2017 Pietilä, Jukka-Pekka and Meri, Taru and Siikamäki, Heli and Tyyni, Elisabet and Kerttula, Anne-Marie and Pakarinen, Laura and Jokiranta, T Sakari and Kantele, Anu, Eurosurveillance, 24, 1800546 (2019), https://doi.org/10.2807/1560-7917.ES.2019.24.29.1800546