REPRODUCIBILITY AND VALIDITY OF A SEMIQUANTITATIVE FOOD FREQUENCY QUESTIONNAIRE

Walter C. Willett(Harvard University), Frank E. Speizer(Brigham and Women's Hospital), Jelia C. Witschi(Harvard University), Meir J. Stampfer(Brigham and Women's Hospital), Bernard Rosner(Brigham and Women's Hospital), Charles H. Hennekens(Florida Atlantic University), Christopher Bain(Australian National University), Laura Sampson(Brigham and Women's Hospital)
American Journal of Epidemiology
July 1, 1985
Cited by 4,325


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