1. Collagenases
2. Gross J, Highberger JH, Johnson-Wint B, Biswas C: Mode of action and regulation of tissue collagenases, Collagenase in Normal and Pathological Connective Tissues. Edited by Woolley, Evanson. Chichester, John Wiley and Sons, 1980, p 11
3. Barrett AJ, Starkey PM: The possible role of leukocyte proteinases in the tissue damage of rheumatoid arthritis, Rheumatoid Arthritis, Cellular Pathology and Pharmacology. Edited by Gordon, Hazleman. Amsterdam, Elsevier/North-Holland, 1977, p 211