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Umesh Kapil, Priyali Pathak, Preeti Singh and Sada Nand Dwivedi, 2003. Reproducibility and Validity of the Food Frequency Questionnaire Methodology
in an Urban Middle Income Group Community of Delhi, India. Pakistan Journal of Nutrition, 2: 33-35.
DOI: 10.3923/pjn.2003.33.35
URL: https://scialert.net/abstract/?doi=pjn.2003.33.35
DOI: 10.3923/pjn.2003.33.35
URL: https://scialert.net/abstract/?doi=pjn.2003.33.35