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. 2021 Mar 30;9:658876. doi: 10.3389/fpubh.2021.658876

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Copyright © 2021 Zucca, Rossmann, Dodic, Ramma, Matsushima, Seet, Holtze, Bremini, Fischinger, Morosetti, Sitzia, Furlani, Greco, Meddi, Zambotto, Meo, Pulcini, Palei and Zamaro.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Q20: “Must dogs be given medication against intestinal worms at least once a year?” ANOVA F_{(6, 649)} p = 0.00153 [Axes X regions or countries, Axes Y % correct answers–DE, Germany; SLO, Slovenia; FVG, Friuli Venezia Giulia Italy; BZ, Autonomous Province of Bolzano Italy; KNT, Carinthia Austria; J, Japan; M, Mauritius–(n = 656)].