Article History
Received: 10 June 2018
Revised: 29 July 2018
Accepted: 3 August 2018
First Online: 10 September 2018
Compliance with ethical standards
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: DHD has received a grant from Novartis. JHL has received honoraria, been on the advisory boards, and has received research funding from Novartis, BMS, Pfizer, and Ariad. NA declares that she has no conflict of interest.