title: Studies on the collagen fibrils in amphibian skin by means of thin sectioning and densitometric method.
mesh_terms: D000005:Abdomen; D000818:Animals; D003094:Collagen; D003720:Densitometry; D008854:Microscopy, Electron; D008867:Microtomy; D011898:Ranidae / Q000033:anatomy & histology*; D012867:Skin / Q000648:ultrastructure*; D014319:Triturus / Q000033:anatomy & histology*
chemical_list: D003094:Collagen