title: Structural studies on human type IV collagen.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002241:Carbohydrates / Q000032:analysis; D003094:Collagen / Q000302:isolation & purification; D005260:Female; D006801:Humans; D003012:Microbial Collagenase; D008970:Molecular Weight; D010434:Pepsin A; D010446:Peptide Fragments / Q000032:analysis; D010920:Placenta / Q000032:analysis*; D011247:Pregnancy
chemical_list: D000596:Amino Acids; D002241:Carbohydrates; D010446:Peptide Fragments; D003094:Collagen; D010434:Pepsin A; D003012:Microbial Collagenase