The ''Uniform Requirements for Manuscripts Submitted to Biomedical Jou
rnals''. (Vancouver Style), developed by the International Committee o
f Medical Journal Editors, was first published 19 years ago. Those req
uirements have been widely accepted by editors and authors. More than
500 journals have agreed in considering the manuscripts following the
''Uniform Requirements'' for publication. This Spanish version is the
translation of the fifth English version, published en The New England
Journal of Medicine in 1997.