title: Historical perspective and future direction.
authors.affiliation: Division of Pediatric Neurosurgery, Children's Hospital of Alabama, Birmingham, USA.
authors.forename: T B
authors.initials: TB
authors.lastname: Mapstone
mesh_terms: D002648:Child; D005544:Forecasting; D006801:Humans; D019635:Neurosurgical Procedures / Q000639:trends*; D010372:Pediatrics / Q000639:trends*; D013038:Specialization / Q000639:trends