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Biology, 06.10.2019 15:30 karena13aguirre

Migraine study results

the table shows the results of a study testing the effectiveness of a migraine medication. why was one group given a sugar tablet?
a. to include a control group
b. to have an experimental group
c. to provide a variety of treatments
d. to give the body additional nutrients

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Migraine study results

the table shows the results of a study testing the effectiveness...
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