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Characteristics and publication fate of unregistered and retrospectively registered clinical trials submitted to The BMJ over 4 years
OBJECTIVES: We sought to evaluate the characteristics and publication fate of improperly registered clinical trials submitted to a medical journal (The BMJ) over a 4-year period to identify common types of registration issues and their relation to publication outcomes. DESIGN: Research articles subm...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BMJ Publishing Group
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5829901/ https://www.ncbi.nlm.nih.gov/pubmed/29453302 http://dx.doi.org/10.1136/bmjopen-2017-020037 |