Descripción: Scientific Electronic Library Online. SciELO is an electronic virtual library covering a selected collection of Brazilian scientific journals. The library is an integral part of a project being developed by FAPESP. Fundação de Amparo à Pesquisa do Estado de São Paulo, in partnership with BIREME. The Latin American and Caribbean Center on Health Sciences Information. The FAPESP-BIREME Project envisages the development of a common methodology for the preparation, storage, dissemination and evaluation of scientific literature in electronic format.