People might find this online European veterinary journal interesting -- there are two articles in the current edition that relate to cavaliers; one on hereditary heart disease and one on CM/SM:
http://ejcap.fecava.org/#/en/241046/109416/list-of-contents.html
There's also two articles on issues around breeding healthier dogs.
http://ejcap.fecava.org/#/en/241046/109416/list-of-contents.html
There's also two articles on issues around breeding healthier dogs.