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PubMed, writing and research
| Autor principal: | |
|---|---|
| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
Medknow Publications
2009
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2797735/ https://www.ncbi.nlm.nih.gov/pubmed/19881099 http://dx.doi.org/10.4103/0971-3026.57204 |