Knowledge assessment of the employees in Heart Center about the Psychological risk of the occupation in Al-Nasiriyah - Dhi-Qar Governorate during COVID 19 Pandemic: A cross-section study. UTJsci [Internet]. 2023 Apr. 29 [cited 2024 May 20];10(1(SI). Available from: https://jsci.utq.edu.iq/index.php/main/article/view/1074