title: Letter to the editor. Liu Q, Yang M L, Li Z J, Bai X F, Wang XK, Lu L, Wang Y X. A simple and precise classification for cleft lip and palate: a five digit numerical recording system. Cleft Palate Craniofac J. 2007;44:465-8.
authors.forename: Eduardo E
authors.initials: EE
authors.lastname: Castilla
authors.forename: Iêda M
authors.initials: IM
authors.lastname: Orioli
mesh_terms: D000539:Alveolar Process / Q000473:pathology; D002681:China; D002971:Cleft Lip / Q000145:classification*; D002972:Cleft Palate / Q000145:classification*; D048048:Dental Informatics; D006801:Humans; D016247:Information Storage and Retrieval; D008046:Lip / Q000473:pathology; D021362:Palate, Hard / Q000473:pathology; D010160:Palate, Soft / Q000473:pathology; D012042:Registries; D013020:South America