Characteristics of mechanically ventilated COVID-19 patients in the Al-Ahsa Region of Saudi Arabia: a retrospective study with survival analysis oleh Amnah Alamer, Syed Mohammed Basheeruddin Asdaq, Mohammad AlYamani, Hussain AlGhadeer, Zahra H. Alnasser, Zainab Aljassim, Maryam Albattat, Ahmed Alhajji, Ahmed Alrashed, Yahya Mohzari, Abrar Aledrees, Badr Almuhainy, Ivo Abraham, Ahmad Alamer