Dietary reference intakes (DRIs) is established by a comprehensive physiological and biochemical determination of experiment animals.
Dietary reference intakes (DRIs) is established by a comprehensive physiological and biochemical determination of experiment animals.
Dietary reference intakes(DRIs) is established by a comprehensive physiological and biochemical determination of human body.
Dietary reference intakes(DRIs) is established by a comprehensive physiological and biochemical determination of human body.
膳食营养素参考摄入量（Dietary Reference Intakes, DRIs）是为了保证人体合理摄入营养素而设定的每日平均膳食营养素摄入量的一组参考值。
膳食营养素参考摄入量（Dietary Reference Intakes, DRIs）是为了保证人体合理摄入营养素而设定的每日平均膳食营养素摄入量的一组参考值。
Below you will find some examples of study designs, please select the correct design for each example. The relation between total fiber intake and colon cancer was studied in 35492 male participants. Fiber intake was measured via food frequency questionnaires at the beginning of the study in 1988 and every two years thereafter prior to an endoscopic procedure to assess colon cancer. Between 1988 and 2006, 2099 colon cancer cases occurred. Occurrence of colon cancer was 39% higher in people with the lowest fiber intake as compared with people with the highest fiber intake. The study suggests that low intakes of fiber in men is associated with an increased risk of colon cancer. The study design is a:
Below you will find some examples of study designs, please select the correct design for each example. The relation between total fiber intake and colon cancer was studied in 35492 male participants. Fiber intake was measured via food frequency questionnaires at the beginning of the study in 1988 and every two years thereafter prior to an endoscopic procedure to assess colon cancer. Between 1988 and 2006, 2099 colon cancer cases occurred. Occurrence of colon cancer was 39% higher in people with the lowest fiber intake as compared with people with the highest fiber intake. The study suggests that low intakes of fiber in men is associated with an increased risk of colon cancer. The study design is a: