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Dordrecht [u.a.]: Kluwer Academic Publishers, c 2003
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Dordrecht [u.a.]: Kluwer, c 1999
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København: Royal Veterinary and Agricultural University, Department of Forestry, 1981
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Canadian Science Publishing, 1997
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Canadian Science Publishing, 1997
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Wiley, 2016
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Ovid Technologies (Wolters Kluwer Health), 2017
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American Medical Association (AMA), 2014