RT Journal Article
SR Electronic
T1 The hardening hypothesis: does it matter?
JF Tobacco Control
JO Tob Control
FD BMJ Publishing Group Ltd
SP 267
OP 268
DO 10.1136/tobaccocontrol-2011-050382
VO 21
IS 2
A1 Docherty, Graeme
A1 McNeill, Ann
YR 2012
UL http://tobaccocontrol.bmj.com/content/21/2/267.abstract
AB