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Hässig, Michael; Meier, A B; Braun, Ueli; Urech Hässig, B; Schmidt, R; Lewis, F (2015). Cattle movement as a risk factor for epidemics. Schweizer Archiv für Tierheilkunde, 157(8):441-448.
Haxhiu, Driton; Hoby, S; Wenker, C; Boos, A; Kowalewski, M P; Lewis, F; Liesegang, A (2014). Influence of feeding and UVB exposition on the absorption mechanisms of Calcium in the gastrointestinal tract of veiled chameleons. Journal of Animal Physiology and Animal Nutrition, 98(6):1021-1030.
Haxhiu, Driton; Hoby, S; Wenker, C; Boos, A; Kowalewski, M P; Lewis, F; Liesegang, A. Influence of feeding and UVB exposition on the absorption mechanisms of Calcium in the gastrointestinal tract of veiled chameleons. 2014, University of Zurich, Vetsuisse Faculty.
Eichenberger, R M; Lewis, F; Gabriël, S; Dorny, P; Torgerson, P R; Deplazes, P (2013). Multi-test analysis and model-based estimation of the prevalence of Taenia saginata cysticercus infection in naturally infected dairy cows in the absence of a 'gold standard' reference test. International journal for parasitology, 43(10):853-859.
Lewis, F; Sanchez-Vazquez, M J; Torgerson, P R (2012). Association between covariates and disease occurrence in the presence of diagnostic error. Epidemiology and Infection, 140(08):1515-1524.