Department of Oral and Craniomaxillofacial Surgery Ninth People’s Hospital Shanghai Jiaotong University School of Medicine National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology Shanghai 200011 China;
Congenital; Palate; Perforation; Craniomaxillofacial; Submucous cleft palate etiology; von Langenbeck palatoplasty;