1. Lugo et al.: Undenatured type II collagen (UC-II?) for joint support: a randomized, double-blind, placebo-controlled study in healthy volunteers . Journal of the International Society of Sports Nutrition 2013 10:48.
2. González Cernadas et al.: Importance of nutritional treatment in the inflammatory process of rheumatoid arthritis patients; a review Nutr Hosp. 2014 Feb 1;29(2):237-45
3. Jay T. Sutliffe et al.:C-reactive protein response to a veganlifestyle intervention. Complementary Therapies in Medicine (2015) 23, 32-37
4. Cindy L. H. Yang et al.: Scientific Basis of Botanical Medicine as Alternative Remedies for Rheumatoid Arthritis Clinic Rev Allerg Immunol (2013) 44:284-300
5. Grube B, Grunwuld J, Krug L, Staiger C. Efficacy of a comfrey root (Symphyti offic. radix) extract ointment in the treatment of patients with painful osteoarthritis of the knee: Results of a double-blind, randomised, bicenter, placebo-controlled trial. Phytomedicine. 2007;14(1):2-10.
6. Brian Gallagher et al.: Chondroprotection and the Prevention of Osteoarthritis Progression of the Knee: A Systematic Review of Treatment Agents Am J Sports Med March 2015 43 734-744
7. Corinne Bassleer et al.: Stimulation of proteoglycan production by glucosamine sulfate in chondrocytes isolated from human osteoarthritic articular cartilage in vitro. Osteoarthritis and Cartilage (1998) 6, 427-434
8. M. Iovu et al.: Anti-inflammatory activity of chondroitin sulfate Osteoarthritis and Cartilage (2008) 3, S14-S18
9. Ostojic SM, Arsic M, Prodanovic S, Vukovic J, Zlatanovic M: Glucosamine administration in athletes: effects on recovery of acute knee injury. Res Sports Med 2007, 15 : 113-124.
10. Petersen SG et al.: Glucosamine but not ibuprofen alters cartilage turnover in osteoarthritis patients in response to physical training. Osteoarthritis Cartilage 2010, 18 : 34-40.
