Basic life support awareness among medical undergraduate students in Syria, Iraq, and Jordan: a multicenter cross-sectional study oleh Mohamad Shadi Alkarrash, Mohammad Nour Shashaa, Mohammad Nour Kitaz, Roaa Rhayim, Mohammed Ismail, Sarya Swed, Wael Hafez, M. Ihsan Kaadan, Hamzeh Koumakli, Nour Alhisah, Ahmed Al-Haider, Samer Al-salloum, Ivan Cherrez-Ojeda