Received: 9 December 2019
Accepted: 21 May 2020
First Online: 29 June 2020
Ethics approval and consent to participate
: Ethics approval was obtained from the University Health Network Research Ethics Board. All subjects provided written informed consent.
: not applicable.
: C. Barnett has received consultancy fees from Akcea, Alexion, Grifols and Takeda. She has received research funding from Grifols and Octapharma. None of these are related to this study. V. Bril has received consultancy fees from CSL, UCB, Argenx, Akcea, Alexion, Alnylam, Grifols And Takeda. She has received research funding from Octapharma, UCB, Argenx, Baxalta and Grifols. None of these are related to this study. A. Bogdan, A. Ali, M. AlQwaifly, A. Abraham, S. Mannan and E. Ng declare no conflicts.