Randomised clinical trial of snus versus medicinal nicotine among smokers interested in product switching
Dorothy K Hatsukami, Herbert Severson, Amanda Anderson, Rachael Isaksson Vogel, Joni Jensen, Berry Broadbent, Sharon E Murphy, Steven Carmella, Stephen S Hecht
Tobacco Control May 2016, 25 (3) 267-274; DOI: 10.1136/tobaccocontrol-2014-052080