Validation of a semi-quantitative food frequency questionnaire: Comparison with a 1-year diet record

Walter C. Willett(Harvard University), Marilyn L. Browne(New York State Department of Health), Laura Sampson(Harvard University), S. Cottrell-Hoehner(Brigham and Women's Hospital), Robert D. Reynolds
Journal of the American Dietetic Association
January 1, 1987
Cited by 547


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