The nature of connective tissue (1st series) collagen (current status).
D000375:Aging; D055598:Chemical Phenomena; D002621:Chemistry; D003094:Collagen / Q000096:biosynthesis / Q000502:physiology; D003095:Collagen Diseases; D003238:Connective Tissue / Q000502:physiology; D006801:Humans; D014945:Wound Healing
D003094:Collagen