Experiences in the use of multiple doses of convalescent plasma in critically ill patients with COVID‐19: An early phase 1 descriptive study oleh Ricardo Aguilar, Sandra López‐Vergès, Anarellys Quintana, Johanna Morris, Lineth Lopez, Ana Cooke, Dimas Quiel, Natalie Buitron, Yaseikiry Pérez, Lesbia Lobo, Maura Ballesteros, Yaneth Pitti, Yamilka Diaz, Lisseth Saenz, Danilo Franco, Daniel Castillo, Elimelec Valdespino, Isabel Blanco, Emilio Romero, Alcibiades Villarreal, Idalina Cubilla‐Batista