Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
One of Xiaomo Li's affiliations was omitted from the published article. The additional affiliation is: Center for Bioinformatics, School of Life Sciences, Peking University, Beijing, China. This is Ms. Li's primary affiliation.
No competing interests declared.
View on publisher site
