title: [The English expression "half life": a source of problems in the Spanish medical literature].
authors.affiliation: Pan American Health Organization, Washington, DC 20037.
authors.forename: J A
authors.initials: JA
authors.lastname: Tapia Granados
mesh_terms: D006207:Half-Life; D013030:Spain; D014177:Translations
vernacular_title: La expresión inglesa half life: una fuente de problemas en la literatura médica en castellano.