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Likely country of origin in publications on randomised controlled trials and controlled clinical trials during the last 60 years
BACKGROUND: The number of publications on clinical trials is unknown as well as the countries publishing most trial reports. To try to examine these questions we performed an ecological study. METHODS: We searched the 454,449 records on publications in The Cochrane Central Register of Controlled Tri...
| Autores principales: | , |
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| Formato: | Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2007
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1808475/ https://www.ncbi.nlm.nih.gov/pubmed/17326823 http://dx.doi.org/10.1186/1745-6215-8-7 |