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Validity and reproducibility of a self-administered semi-quantitative food-frequency questionnaire for estimating usual daily fat, fibre, alcohol, caffeine and theobromine intakes among Belgian post-menopausal women.
Bolca S, Huybrechts I, Verschraegen M, De Henauw S, Van de Wiele T. Bolca S, et al. Among authors: verschraegen m. Int J Environ Res Public Health. 2009 Jan;6(1):121-50. doi: 10.3390/ijerph6010121. Epub 2009 Jan 6. Int J Environ Res Public Health. 2009. PMID: 19440274 Free PMC article. Clinical Trial.