Correction to: Blood Cancer Journal (2017) 7, e617; doi:10.1038/bcj.2017.90; published online 20 October 2017
Since the publication of this paper the authors have noticed that some of the references cited in the text were not numbered correctly. A duplicate reference in the reference list was removed during the production process but the references were not correctly re-numbered in the text. This has now been updated in the original article.
The publishers apologise for any inconvenience caused by this error.