This article refers to:
Nanosize titanium dioxide cause neuronal apoptosis: a potential linkage between nanoparticle exposure and neural disorder.
Yiqun Yu, Wenwen Ren, Baozhong Ren.
http://dx.doi.org/10.1179/0161641215Z.000000000587.
We would like to acknowledge the above paper published in Vol. 30 No. 10. The article was incorrectly missed from the issue.