Abdulkadhim, A.J. , Nidhal Yousif Mohammed and Dr. Murtadha Allawi Jebur 2023. The Study of Biomarkers inSmokers Infected with Covid-19 in Basra, Iraq. International Journal of Medical Science and Clinical Research Studies . 3, 8 (Aug. 2023), 1655–1662. DOI:https://doi.org/10.47191/ijmscrs/v3-i8-40.