title: Electron-microscopic studies on a double-stranded beaded filament of embryonic collagen.
mesh_terms: D000818:Animals; D003094:Collagen / Q000032:analysis*; D003239:Connective Tissue Cells; D004622:Embryo, Mammalian; D004798:Enzymes / Q000494:pharmacology; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D003012:Microbial Collagenase / Q000494:pharmacology; D008854:Microscopy, Electron; D010504:Periodic Acid / Q000494:pharmacology; D051381:Rats; D012867:Skin / Q000166:cytology*; D013552:Swine; D014357:Trypsin / Q000494:pharmacology; D014508:Urea / Q000494:pharmacology
chemical_list: D004798:Enzymes; D010504:Periodic Acid; D014508:Urea; D003094:Collagen; D014357:Trypsin; D003012:Microbial Collagenase