Abera B, Lynch S, Duguma R, Dessie T, Bettridge J, Wigley P and Christley R 2017:
Immunogenicity of the Newcastle disease virus vaccine La Sota, in introduced birds under intensive and extensive management conditions.
Livestock Research for Rural Development. Volume 29, Article #110.
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, from http://www.lrrd.org/lrrd29/6/emus29110.html