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Validity and reliability of a simplified food frequency questionnaire: a cross sectional study among physical health examination adults in southwest region of China
BACKGROUND: In China, many people are regarded suitable for participating in regular physical examination for diagnosis and prevention of diseases. Some simplified food frequency questionnaires have been designed and used; however, the accuracy of the questionnaire is absent. This study aimed to exa...
Autores principales: | Cheng, Zhengyan, Shuai, Ping, Qiao, Qichuan, Li, Tingxin |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7541293/ https://www.ncbi.nlm.nih.gov/pubmed/33023588 http://dx.doi.org/10.1186/s12937-020-00630-z |
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