1. Meyer D, Hewicker-Trautwein M, Hartmann M, Kreienbrock L, grosse Beilage E. Scoring shoulder ulcers in breeding sows – is a distinction between substantial and insubstantial animal welfare-related lesions possible on clinical examination? Porcine Health Management. 2019;5(1):3.
2. Rioja-Lang FC, Seddon YM, Brown JA. Shoulder lesions in sows: a review of their causes, prevention, and treatment. J Swine Health Prod. 2018;26(2):101–7.
3. Rosendal T, Nielsen JP. Editors. Risk factors for the development of decubital ulcers over the scapula in sows. Proceedings of the 18th IPVS congress 2004; Hamburg. Germany. .
4. Knauer M, Stalder KJ, Karriker L, Baas TJ, Johnson C, Serenius T, et al. A descriptive survey of lesions from cull sows harvested at two Midwestern U.S. facilities. Prev Vet Med. 2007;82:198–212.
5. Anil S, Anil L, Deen J. Editors. Factors associated with shoulder lesions in breeding sows. Proc Allen D leman swine conference; 2006; Univ. of Minnesoty, St. Paul MN. US Minnesota.