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Registries: what level of evidence do they provide?
| Autor principal: | |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Springer-Verlag
2007
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2045122/ https://www.ncbi.nlm.nih.gov/pubmed/17673944 http://dx.doi.org/10.1007/s00192-007-0434-5 |