title: Biosynthesis of collagen in the periodontal ligament.
mesh_terms: D002250:Carbon Radioisotopes; D003094:Collagen / Q000096:biosynthesis*; D006801:Humans; D066298:In Vitro Techniques; D010513:Periodontal Ligament / Q000378:metabolism; D011392:Proline / Q000378:metabolism
chemical_list: D002250:Carbon Radioisotopes; D003094:Collagen; D011392:Proline