Nutritional epidemiology - PowerPoint PPT Presentation

Nutritional epidemiology (CHS 269) Lecture NO (1)

Nutritional epidemiology (CHS 269) Lecture NO (1). Epidemiology. Epidemiology is defined as follows: It is the study of the frequency, distribution and determinants of health related phenomena in human populations. NUTRITION. Science of food, nutrients and other substances therein,

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Recall of remote diet

Recall of remote diet. Nutritional epidemiology WALTER WILLETT. Introduction. For some diseases, including many cancers,the effect of diet is hypothesized to occur many years before diagnosis—recall of remote diet---relative unstructured diet histories or food frequency questionnaire

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