I think genetics methods can also use a saliva, hair or skin samples.
If a person is "not allowed to participate," why would you want to take a sample?
Since this is not my area of expertise, I searched Google under the key words "genetic research" to get this:
http://www.google.com/search?client=safari&rls=en&q=genetic+research&ie=UTF-8&oe=UTF-8
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I am doing a review of the benefits and limitations to using genetic methods to research humans.
I think the limitations will come from the fact that you need a blood sample.
I'm not sure how to find about how much blood the scientist takes from the person or who is not allowed to participate in such a study.
Any ideas or help?
Thanks
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