- 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 10 March 2016
- Accepted 21 September 2016
- Published in print 1 March 2017.
- Published online 21 March 2017.
- Published first 11 October 2016.
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