Gac Sanit. 2004 Sep-Oct;18(5):417-9. doi: 10.1016/s0213-9111(04)71859-2.
Gaceta sanitaria
[Article in Spanish] Juan B Bellido
PMID: 15498416 DOI: 10.1016/s0213-9111(04)71859-2
[No abstract available.]