Heterogeneity of collagen molecules.
D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D002356:Cartilage / Q000032:analysis; D055598:Chemical Phenomena; D002621:Chemistry; D002645:Chickens; D003094:Collagen / Q000032:analysis*; D008722:Methods
D000596:Amino Acids; D003094:Collagen