F. Al-Azawi, A., Z. Al-Sugmiany, R. and H. Alyassine, M. 2018. Detection the Genetic Variation for GSTM1, GSTT1 Genes in Smokers by Multiplex-PCR Technique. Rafidain Journal of Science. 27, 4 (Dec. 2018), 343–353. DOI:https://doi.org/10.33899/rjs.2018.159371.