Question: When you study the children is it like a survey?

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  1. Parts of it are surveys (like the food questionnaires and questions about alcohol use and home environment), but a good chunk of our study comes from actual measurements done on the kids…their height, weight, blood pressure, ultrasounds….as well as tests done on blood samples that they have given every few years. Blood samples give us data on genetics and blood chemistry, including vitamin D.

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