Enhanced expression of the human chitinase 3-like 2 gene (YKL-39) but not chitinase 3-like 1 gene (YKL-40) in osteoarthritic cartilage. - Steck,E.; Breit,S.; Breusch,S.J.; Axt,M.; Richter,W. (Biochem Biophys Res Commun, 2002)