Abo Jeesh, Y.A., Mohammed Khalid, E.F.-E. and Elbashier, I.M.A. 2021. Effectiveness of Teaching Program on Critical Care Nurses’ Performance during Endotracheal Suctioning in the Intensive Care Units in Syria. European Scientific Journal, ESJ. 17, 34 (Sep. 2021), 190. DOI:https://doi.org/10.19044/esj.2021.v17n34p190.