In the first sentence of “Introduction” on page 2295 in the 14 November 2017 issue, “∼1.9-6.4 per 10,000 children per year and 3.3 per 10,000 adults per year” should have read, “∼1.9-6.4 per 100 000 children per year and 3.3 per 100 000 adults per year.” The errors have been corrected in the published article.
© 2018 by The American Society of Hematology
2018
