Hashibe, Mia
Galeone, Carlotta
Buys, Saundra S
Gren, Lisa
Boffetta, Paolo
Zhang, Zuo-Feng
La Vecchia, Carlo
Article History
Received: 13 March 2015
Revised: 23 June 2015
Accepted: 26 June 2015
First Online: 20 August 2015
Competing interests
: The authors declare no conflict of interest.