Michell AR. Longevity of British breeds of dog and its relationships with sex, size, cardiovascular variables and disease. „Vet. Rec.”. 145 (22), s. 625–9, listopad 1999. DOI: 10.1136/vr.145.22.625. PMID: 10619607.
Michell AR. Longevity of British breeds of dog and its relationships with sex, size, cardiovascular variables and disease. „Vet. Rec.”. 145 (22), s. 625–9, listopad 1999. DOI: 10.1136/vr.145.22.625. PMID: 10619607.