Dietary assessment in the elderly: application of a two-step semi-quantitative food frequency questionnaire for epidemiological studies
نویسندگان
چکیده
K. Klipstein-Grobusch,∗† J. C. M. Witteman,∗ J. H. den Breeijen,‡ R. A. Goldbohm,‡ A. Hofman,∗ P. T. V. M. de Jong,∗§¶ H. A. Pols∗∗ and D. E. Grobbee∗ ∗Department of Epidemiology & Biostatistics, and ∗∗Department of Internal Medicine, Erasmus University Medical School, Rotterdam, The Netherlands; †Department of Epidemiology, German Institute of Human Nutrition, PotsdamRehbrücke, Germany; ‡TNO Nutrition and Food Research Institute, Zeist, The Netherlands; §The Netherlands Ophthalmolic Research Insitute, Amsterdam, The Netherlands; ¶Department of Ophthalmology, Academic Medical Center, Amsterdam, The Netherlands
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Development and validation of a Semi-quantitative food frequency questionnaire among older people in north of Iran
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