Articular cartilage.
D000367:Age Factors; D002358:Cartilage, Articular / Q000033:anatomy & histology / Q000201:enzymology / Q000378:metabolism / Q000502:physiology; D003094:Collagen / Q000378:metabolism; D006025:Glycosaminoglycans / Q000032:analysis / Q000378:metabolism; D006801:Humans; D007592:Joint Diseases; D008854:Microscopy, Electron
D006025:Glycosaminoglycans; D003094:Collagen