Wenz, J. R., T. E. Solis, and D. A. Moore. “An Estimation of the Cow- and Herd-Level Prevalence of Post-Partum Subclinical Ketosis in Large Washington State Dairy Herds and Evaluation of Mean β-Hydroxybutyrate Concentration for Herd-Level Assessment”. The Bovine Practitioner, vol. 50, no. 2, June 2016, pp. 202-9, doi:10.21423/bovine-vol50no2p202-209.