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Validity and reproducibility of a semi-quantitative food-frequency questionnaire for estimating calcium intake in Belgian preschool children
Huybrechts, Inge, Bacquer, Dirk De, Matthys, Christophe, Backer, Guy De, Henauw, Stefaan DeVolume:
95
Language:
english
Journal:
British Journal of Nutrition
DOI:
10.1079/bjn20051671
Date:
April, 2006
File:
PDF, 229 KB
english, 2006