https://www.thekennelclub.org.uk/shop/health/the-kennel-club-dna-testing-services-gundog-group/spaniel-cocker/

https://www.thekennelclub.org.uk/shop/health/the-kennel-club-dna-testing-services-utility-group/poodle-toy/

https://www.bva.co.uk/news-and-blog/blog-article/chs-month-what-exactly-is-the-bva-kc-isds-eye-examination-scheme/

https://www.thekennelclub.org.uk/shop/health/the-kennel-club-dna-testing-services-toy-group/cavalier-king-charles-spaniel/

https://www.thecavalierclub.co.uk/start.html

https://www.bva.co.uk/media/2800/20190710-chs-cmsm-leaflet-0719-v1-web.pdf