Liu, Sean TH, Hung-Mo Lin, Ian Baine, Ania Wajnberg, Jeffrey P. Gumprecht, Farah Rahman, Denise Rodriguez et al. "Convalescent plasma treatment of severe COVID-19: a propensity score–matched control study." Nature Medicine (2020): 1-6.
Joyner, Michael J., et al. "Effect of convalescent plasma on mortality among hospitalized patients with COVID-19: initial three-month experience." MedRxiv (2020).