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.
You could say that he was the cause of the Cold War. Whether he was the cause or not, he was certainly one of the most important actors in the beginning of the Cold War. Stalin was the leader of the Soviet Union from the 1920s until his death in 1953.This means that he was the center of power in the USSR during the years in which the Cold War was beginning.hether he was the cause or not, he was certainly one of the most important actors in the beginning of the Cold War. Stalin was the leader of the Soviet Union from the 1920s until his death in 1953. This means that he was the center of power in the USSR during the years in which the Cold War was beginning.