Validation and reproducibility of food frequency questionnaire for Korean genome epidemiologic study
FFQ was administered twice at 1-year interval (first FFQ (FFQ1) at the beginning and second FFQ (FFQ2) at the end of the study) and diet records (DRs) were collected for 3 days during each of the four ...
Galea, H. , Perry, M. and Jones, P. (2026) Characterising Irritable Bowel Syndrome: An Exploratory Cross-Sectional Study .
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