title: Comparative electron-microscope studies on the collagens extracted from cartilage, bone, and skin.
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000032:analysis; D002356:Cartilage / Q000032:analysis; D002642:Chick Embryo; D002645:Chickens; D003094:Collagen; D003460:Crystallization; D007842:Lathyrism; D008854:Microscopy, Electron; D010434:Pepsin A; D012867:Skin / Q000032:analysis; D013194:Staining and Labeling
chemical_list: D003094:Collagen; D010434:Pepsin A