<span>Prostate cancer - Cancer of the prostate gland.</span>
Answer:
Ghrelin (I hope this helps!!)
Explanation:
One of the example would be: <span>Asking women if they have had an abortion
Women who had abortion usually experienced a drastic emotional pressure right before and after the abortion process.
Finding out the harm of abortion by collecting the data from women who never actually experienced wouldn't represent the closest situation compared to the women who actually experienced it.</span>
They both worked with NASA.