title: Connective tissues: the natural fibre-reinforced composite material.
mesh_terms: D000375:Aging; D000818:Animals; D003094:Collagen / Q000032:analysis; D003238:Connective Tissue / Q000032:analysis / Q000196:embryology / Q000502:physiology*; D006801:Humans; D011509:Proteoglycans / Q000032:analysis
chemical_list: D011509:Proteoglycans; D003094:Collagen