Aging of connective tissues.
D000375:Aging; D000818:Animals; D003094:Collagen / Q000096:biosynthesis; D003238:Connective Tissue / Q000502:physiology*; D003239:Connective Tissue Cells; D004547:Elastic Tissue / Q000502:physiology; D004549:Elastin / Q000096:biosynthesis; D006801:Humans; D011817:Rabbits
D003094:Collagen; D004549:Elastin