Safety and Efficacy of Convalescent Plasma for Severe COVID-19: Interim Report of a Multicenter Phase II Study from Saudi Arabia oleh Nawal AlShehry, Syed Ziauddin A Zaidi, Ahmed AlAskar, Abdurahman Al Odayani, Jawaher Mubarak Alotaibi, Ahmed AlSagheir, Ayman Al-Eyadhy, Saud Balelah, Abdul Salam, Abdul Rehman Zia Zaidi, Diea Alawami, Mohammed S Alshahrani, Nour AlMozain, Yem M Abulhamayel, Reem Al Qunfoidi, Mona Alfaraj, Nahid Qushmaq, Rehab Alansari, Afra Dayel, Ghada Elgohary, Ahmed Al Bahrani, Arwa A Nabhan Abdelhameed, Hazza Abdullah AlZahrani, Hanan Alturkistani, Nada AlShehry, Mohammed Abdulhameed Albalawi, Ibrahim Elalfy, Hind Alhumaidan, Hani Al-Hashmi