title: [Gaspar Casal: ecological description of pellagra, the leading deficiency disease].
abstract: The third in a series of highlights from public health classics in Spain features Gaspar Casal (1680-1759), who discovered pellagra, the leading deficiency disease, in nosological terms, in his surrounding environment.
authors.forename: José María
authors.initials: JM
authors.lastname: López Piñero
mesh_terms: D049671:History, 18th Century; D010383:Pellagra / Q000266:history*; D013030:Spain