title: An electron microscope study of the Auerbach's plexus and determination of substance P of the colon in Hirschsprung's disease.
mesh_terms: D006651:Histocytochemistry; D006801:Humans; D008531:Megacolon / Q000473:pathology* / Q000601:surgery; D008854:Microscopy, Electron; D009197:Myenteric Plexus / Q000032:analysis / Q000473:pathology*; D009474:Neurons; D012583:Schwann Cells; D013373:Substance P / Q000032:analysis*
chemical_list: D013373:Substance P