- Correspondence to Dr Theodore L Wagener, Assistant Professor of Pediatrics, Associate Director of Training, Oklahoma Tobacco Research Center, TSET Research Scholar, Stephenson Cancer Center, University of Oklahoma Health Sciences Center, 655 Research Park, Oklahoma City 73104-5410, USA;
- Received March 10, 2016
- Accepted September 21, 2016
- First published October 11, 2016.
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