Updates are available Correction dated 2014-05-21
Click to view Correction: https://doi.org/10.1038/509412b
- License Information
-
More Information
Article History
First Online: 13 May 2014
Change Date: 14 May 2014
Change Type: Correction
Change Details: This story stated that 13 workers were exposed to levels of contamination. In fact, 21 were exposed. This has now been corrected.
Change Date: 21 May 2014
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1038/509412b
Free to read: This content has been made available to all.
