1. McLaughlin, R. 2000. Management of chronic osteoarthritic pain. Vet. Clin. North Am. Small Anim. Pract. 30, 933–949.
  2. Hardie EM, Roe SC, Martin FR. Radiographic evidence of degenerative joint disease in geriatric cats: 100 cases (1994-1997). J Am Vet Med Assoc 2002;220(5):628-632.
  3. Godfrey DR. Osteoarthritis in cats: a retrospective radiological study. J Small Anim Pract 2005;46(9):425-429.
  4. Clarke SP, Mellor D, Clements DN, et al. Prevalence of radiographic signs of degenerative joint disease in a hospital population of cats. Vet Rec 2005;157(25):793799.
  5. Slingerland LI, Hazewinkel HA, Meij BP, Picavet P, Voorhout G. Cross-sectional study of the prevalence and clinical features of osteoarthritis in 100 cats. Vet J. 2011 Mar;187(3):304-9.
  6. Lascelles BD, Henry JB, Brown J, Robertson I, Sumrell AT, Simpson W, Wheeler S, Hansen BD, Zamprogno H, Freire M, Pease A. Cross-sectional study of the prevalence of radiographic degenerative joint disease in domesticated cats. Vet Surg. 2010 Jul;39(5):535-44.
  7. L. Varney,1 J. W. Fowler, and C. N. Coo. 2021. Undenatured type II collagen mitigates inflammation and cartilage degeneration in healthy Labrador Retrievers during an exercise regimen. Transl. Anim. Sci. 2021.5:1-10.
  8. Gencoglu, H., Orhan, C., Sahin, E. and Sahin, K. 2020. Undenatured type-II collagen (UC-II®) in joint health and disease: a review on the current knowledge of companion animals. Anim. (Basel). 10(4), 697.
  9. Ameye, L, Chee, W. Osteoarthritis and nutrition. From nutraceuticals to functional foods: a systematic review of the scientific evidence. Arthritis Research & Therapy 2006, 8:R127.
  10. Crespo Gil ME, Navarro Moll MC. La raíz de harpagofito en el tratamiento de afecciones reumáticas. Rev Fitoterapia 2012, 12(1): 5-14.
  11. Mehler SJ, May LR, King C, Harris WS, Shah Z. Prostaglandins, Leukotrienes and Essential Fatty Acids 2016; 109: 1–7.
  12. Miller WH, Scott DW, Wellington JR. Treatment of dogs with hip arthritis with a fatty acid supplement. Canine Pract 1992;17:6–8.
  13. Elliot, D., 2007: Nutritional management of canine arthritis. Veterinary Focus 17, 43–48.