[Use of geographic restrictions in PubMed]

Rev Esp Salud Publica. 2007 Jul-Aug;81(4):421-2; author reply 423. doi: 10.1590/s1135-57272007000400009.
[Article in Spanish]
No abstract available

Publication types

  • Comment
  • Letter

MeSH terms

  • PubMed*
  • Spain