Jean Peduzzi-Nelson, associate professor in the department of anatomy and cell biology at Wayne State's School of Medicine, wrote an opinion piece about stem cell research and the success of adult cells compared to embryonic stem cells. "The greatest advantage of adult stem cells," Peduzzi-Nelson writes, "is that it\'s usually possible to use a person\'s own stem cells, which is the safest stem cell option for people. This avoids the problems of rejection, disease transmission, chromosomal abnormalities and uncontrolled growth. One problem with embryonic stem cells that is rarely mentioned is that methods have yet to be developed to grow these cells in a manner that does not induce significant chromosomal abnormalities. She adds that the results with adult stem cells will eventually end a controversy that should never have existed in the first place.