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.
Alger Hiss was a former high-ranking State Department official, accused by Whittaker Chambers in August 1948 of being a communist and Soviet spy. During the second of two triaâ¦ls in 1949, Hiss was found guilty on two counts of perjury and in 1950 sentenced to give years (serving only 44 months due to good behavior).