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A six-month crossover chemoprevention clinical trial of tea in smokers and non-smokers: methodological issues in a feasibility study
BACKGROUND: Chemoprevention crossover trials of tea can be more efficient than parallel designs but the attrition and compliance rates with such trials are unknown. METHODS: Attrition (dropouts) and compliance with treatment were assessed in a 25-week randomized, placebo controlled, crossover, feasi...
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Main Authors: | , , , , , , , , , |
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Formato: | Artigo |
Idioma: | Inglês |
Publicado em: |
BioMed Central
2012
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Assuntos: | |
Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3414766/ https://ncbi.nlm.nih.gov/pubmed/22800470 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1472-6882-12-96 |
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