van Elk, Cornelis E ; van de Bildt, Marco W. G ; van Run, Peter R. W. A... Veterinary research -- Vet. Res. -- 2012391-7 -- 1297-9716 -- 0928-4249 -- https://veterinaryresearch.biomedcentral.com/ -- https://www.ncbi.nlm.nih.gov/pmc/journals/892/ -- http://rzblx1.uni-regensburg.de/ezeit/detail.phtml?bibid=TIHO&colors=7&lang=de&jour_id=151571.
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2019