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.
The Soviets played a major role in the second world war, particularly toward the end of the conflict. The Russo-German Non-Aggression Pact, a shaky alliance between Stalin and â¦ Hitler, who were of opposite ideologies and aimed to expands their spheres of influence, was eventually violated by Hitler.