Research study related physical and mental disorder
Answer:
The reasons for this are likely because:
- Peru was a poorer country at the time.
- The Peruvian people didn't have access to clean/filtered water.
Explanation:
(I'm not sure, but I hope that helps.)
The U.S. Bureau<span> of Refugees, </span>Freedmen<span> and Abandoned Lands, popularly known as the </span>Freedmen's Bureau<span>, was established in 1865 by Congress to help former black slaves and poor whites in the South in the aftermath of the U.S. Civil War (1861-65).</span>
The answer you are looking for is "cardiac sphincter".