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Cases of reduced cyathostomin egg-reappearance period and failure of Parascaris equorum egg count reduction following ivermectin treatment as well as survey on pyrantel efficacy on German horse farms.
von Samson-Himmelstjerna G, Fritzen B, Demeler J, Schürmann S, Rohn K, Schnieder T, Epe C. von Samson-Himmelstjerna G, et al. Vet Parasitol. 2007 Mar 15;144(1-2):74-80. doi: 10.1016/j.vetpar.2006.09.036. Epub 2006 Nov 16. Vet Parasitol. 2007. PMID: 17112667
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