title: [Difficulties for Research in Pediatric Surgery in Spain].
authors.affiliation: Ex-Jefe del Departamento de Cirugía Pediátrica del Hospital Universitario La Paz. Catedrático Emérito de Pediatría de la Universidad Autónoma de Madrid.
authors.forename: J A
authors.initials: JA
authors.lastname: Tovar
mesh_terms: D035843:Biomedical Research; D002648:Child; D013502:General Surgery; D006801:Humans; D010372:Pediatrics; D013030:Spain