Answer:
The North European Plain stretches from the south of England to Russia. Parts of France, Belgium, the Netherlands, Germany, Denmark, Poland, the Baltic states of Estonia, Latvia, and Lithuania, as well as Belarus, are included.
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Answer:
An Institutional Review Board (IRB) letter of approval from both the researcher's U.S. institution and an equivalent entity within the host country.
Explanation:
According to my research on Research and Development requisites in the US, I can say that based on the information provided within the question they must have An Institutional Review Board (IRB) letter of approval from both the researcher's U.S. institution and an equivalent entity within the host country.
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