Received: 20 May 2019
Accepted: 14 August 2019
First Online: 23 August 2019
Ethics approval and consent to participate
: All sites consented patients per site IRB and WIRB.
: All authors read the manuscript and agree to publication.
: Academic authors have nothing to disclose. MW, SJF, TU, AK, LL, CLB, and XP are employed by Alexion Pharmaceuticals, Inc.