1. College of Health and Medical Technology, Al-Ayen University Nasiriya heart center,Department of Anesthesia,Thi-Qar,Iraq
2. College of Health and Medical Technology, Al-Ayen University AL-Rifaei General Hospital,Department of Anesthesia,Thi-Qar,Iraq
3. College of Health and Medical Technology, Al-Ayen University Bent AL Huda hospital,Department of Anesthesia,Thi-Qar,Iraq
4. College of Health and Medical Technology, Al-Ayen University,Department of Anesthesia,Thi-Qar,Iraq
5. Bilad Alrafidain Univesiy College,Thi-Qar,Iraq
6. College of dentistry, Al-Ayen university,Thi-Qar,Iraq