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Observational studies versus controlled clinical trials for efficacy & effectiveness of a drug
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Medknow Publications & Media Pvt Ltd
2015
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4510735/ https://www.ncbi.nlm.nih.gov/pubmed/26112855 http://dx.doi.org/10.4103/0971-5916.159313 |