Morris, J. S.; Bostock, D. E.; Hoather, T. M.; Dobson, J. M.; McInnes, E. F. (2000). "Histopathological survey of neoplasms in flat‐coated retrievers, 1990 to 1998". Veterinary Record. 147 (11): 291–295. doi:10.1136/vr.147.11.291. ISSN0042-4900.
Adams, V. J.; Evans, K. M.; Sampson, J.; Wood, J. L. N. (1 October 2010). "Methods and mortality results of a health survey of purebred dogs in the UK". The Journal of Small Animal Practice. 51 (10): 512–524. doi:10.1111/j.1748-5827.2010.00974.x. PMID21029096.
Adams, V. J.; Evans, K. M.; Sampson, J.; Wood, J. L. N. (1 October 2010). "Methods and mortality results of a health survey of purebred dogs in the UK". The Journal of Small Animal Practice. 51 (10): 512–524. doi:10.1111/j.1748-5827.2010.00974.x. PMID21029096.
Morris, J. S.; Bostock, D. E.; Hoather, T. M.; Dobson, J. M.; McInnes, E. F. (2000). "Histopathological survey of neoplasms in flat‐coated retrievers, 1990 to 1998". Veterinary Record. 147 (11): 291–295. doi:10.1136/vr.147.11.291. ISSN0042-4900.