- Correspondence to Dr Paolo Boffetta, MPH Tisch Cancer Institute Icahn School of Medicine at Mount Sinai, 1 Gustave L Levy Place, Box 1130, New York, NY 10029, USA;
- Received 7 March 2016
- Revised 22 December 2016
- Accepted 29 January 2017
- Published online 24 April 2017.
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