- Correspondence to
Dr David B Resnik, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), 111 Alexander Drive, PO Box 12233, CU 03, Mail Drop CU 108, Research Triangle Park, NC 27709, USA;
- Received October 28, 2011
- Accepted June 20, 2012
- First published July 19, 2012.
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