IUGR has various causes. The most common cause is a problem in the placenta (the tissue that carries oxygen, food and blood to the baby).Birth defects and genetic disorders can also cause IUGR.UGR has various causes. The most common cause is a problem in the placenta (the tissue that carries oxygen, food and blood to the baby).
Making the world better, one answer at a time. Ethel Rosenberg was the person who played the minor role in the passing of the atomic secrets to the Soviet. He was later convicted for passing the atomic secrets to the Soviets.
At least two other scientists associated with the Manhattan Project also served as spies for Soviet Union: Allan Nunn May and Bruno Pontecorvo. Another British physicist who came over with James Chadwick in 1943, May, unlike his colleague Klaus Fuchs, was not assigned to Los Alamos.