2013 journal article
Effect of physical and inhaled euthanasia methods on hormonal measures of stress in pigs
Journal of Swine Health and Production, 21(5), 261–269.
By: R. Meyer, J. Whitley, W. Morrow, L. Stikeleather, C. Baird, J. Rice, B. Halbert, D. Styles, C. Whisnant