(EU: Statistics on laboratory animals)
https://eur-lex.europa.eu/resource.html?uri=cellar:e99d2a56-32fc-4f60-ad69-61ead7e377e8.0001.03/DOC_1&format=PDF
(EU/EFSA: Aspects of the biology and welfare of animals used for experimental and other scientific purposes)
https://ec.europa.eu/environment/chemicals/lab_animals/pdf/efsa_opinion.pdf
(EU/SCHEER: Non-human primates in research)
https://ec.europa.eu/environment/chemicals/lab_animals/pdf/Scheer_may2017.pdf