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b>Simonin et al., Caffeine intake and age at onset in Huntington’s disease Abstract: To determine a possible relationship between caffeine consumption and age at onset (AAO) in HD, we retrospectively assessed caffeine consumption in 80 HD patients using a dietary survey and determined relationship with AAO. Following adjustment for gender, smoking status and CAG repeat length, caffeine consumption greater than 190mg/day was significantly associated with an earlier AAO. Based on the above description from the abstract, the study design used by the researchers was a:

A. Case control study
B. Cohort study
C. Interventional study
D. Meta-analysis

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Before watching the next video segment, here’s a quick trivia question that will shed light on the quantity of research produced annually.Approximately how many scientific research papers are published per year?

A. 100 000 - 200 000
B. 500 000 - 600 000
C. 1.0 - 1.1 million
D. 1.8 - 1.9 million
E. 2.4 - 2.5 million

In the discussion of the discovery of DNA presented in the previous video, the work of Avery Oswald and Watson & Crick represent a case of simultaneous discovery.

A. True
B. False

Based on the two examples of scientific discovery presented in the previous video segment, which of the following is the best definition for ‘simultaneous discovery’?

A. Scientific discoveries that are made independently that occur more or less at the same time by multiple scientists.
B. Scientific discoveries that are replicated immediately after the first results in order to test their validity.
C. Scientific discoveries that happen at the same time and are collaborations between multiple researchers.

New words related to food are continuously being added to our vocabulary, for instance, the term 'functional foods.' Which of the following are considered to be functional foods? Select all that apply.

A. Probiotic yogurt
B. Omega 3 eggs
C. Oat bran cereal
D. Calcium-enriched orange juice
E. Vitamin Water

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