Egenvall et al. Acta Veterinaria Scandinavica 2011, 53(Suppl 1):S4 http://www.actavetscand.com/content/53/S1/S4 Medicare Databases to Obtain Healthcare Costs for Dual-Eligible Beneficiaries: Using Diabetes as an Example. PharmacoEconomics 2009, 27:167-177. 29. Bartlett PC, Van Buren JW, Neterer M, Zhou C: Disease surveillance and referral bias in the veterinary medical database. Prev Vet Med 2010, 94:264-271. 30. Priester WA, Schirmer RG, Rines MP: A one-year analysis of veterinary patients, diagnoses, and operations at Michigan State University. J Am Vet Med Ass 1966, 148:666-671. doi:10.1186/1751-0147-53-S1-S4 Cite this article as: Egenvall et al.: Integrating databases for research on health and performance in small animals and horses in the Nordic countries. Acta Veterinaria Scandinavica 2011 53(Suppl 1):S4. Page 6 of 6 Submit your next manuscript to BioMed Central and take full advantage of: • Convenient online submission • Thorough peer review • No space constraints or color ﬁgure charges • Immediate publication on acceptance • Inclusion in PubMed, CAS, Scopus and Google Scholar • Research which is freely available for redistribution Submit your manuscript at www.biomedcentral.com/submit