title: In vitro culture of periodontal ligament cells.
mesh_terms: D000818:Animals; D002642:Chick Embryo / Q000187:drug effects; D046508:Culture Techniques; D005347:Fibroblasts; D000882:Haplorhini; D003012:Microbial Collagenase / Q000494:pharmacology; D010513:Periodontal Ligament; D010519:Periodontium; D014357:Trypsin / Q000494:pharmacology
chemical_list: D014357:Trypsin; D003012:Microbial Collagenase