A study of the organic material of hen's-egg shell.
D000818:Animals; D002645:Chickens; D004528:Egg Shell; D004531:Eggs / Q000737:chemistry*; D005260:Female; D011134:Polysaccharides / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry*
D011134:Polysaccharides; D011506:Proteins
EGGS/chemistry; POLYSACCHARIDES/chemistry; PROTEINS/chemistry