title: Present status of retropharyngeal implantation for velopharyngeal insufficiency.
mesh_terms: D000273:Adipose Tissue / Q000637:transplantation; D016025:Bone Transplantation; D002356:Cartilage / Q000637:transplantation; D005500:Follow-Up Studies; D006801:Humans; D007267:Injections; D008722:Methods; D010159:Palate / Q000601:surgery*; D010608:Pharyngeal Diseases / Q000601:surgery*; D010969:Plastics; D011183:Postoperative Complications; D019736:Prostheses and Implants; D012828:Silicones; D014182:Transplantation, Autologous; D014183:Transplantation, Heterologous; D014184:Transplantation, Homologous
chemical_list: D010969:Plastics; D012828:Silicones