Abdel Moneim Al - Jawadi, Z. and Mahfouz Al Nuaimi, Z. 2013. Relationship of zinc, copper and manganese levels on bone formation that increases the risk of uterine cancer. Journal of Education and Science. 26, 5 (Dec. 2013), 244–251. DOI:https://doi.org/10.33899/edusj.2013.163102.