The correct answer is puberty.
hope this helps
HLA Testing is used to match organ and tissue transfer receivers
with well-matched benefactors. HLA is a type of blood test done to search for a
protein, which can be found on the exterior of leukocytes or also known as White
Blood Cells. This protein is used to determine the differences between its own
cells and foreign ones, as well as damaging bodies.
The 1900’s
With the turn of the century came a push for organized medicine, led in part by the American Medical Association (AMA), which was growing stronger and gained 62,000 physicians during the coming decade. But because the working class wasn’t supportive of the idea of compulsory healthcare, the U.S. didn’t see the kind of groundswell that leading European nations would see soon after.
