Check these before and after results, within 4 weeks
Orange was evident throughout the smoke
However, there is still much uncertainty, as this issue has not yet become a priority for the government
Even a an anti-tobacco zealot could see and hear which students got the graphic label compared to the text label
AG, RH, SH, AM and TP are members of the UK Centre for Tobacco & Alcohol Studies, a UK Clinical Research Collaboration Public Health Research: Centre of Excellence whose work is supported by funding from the Medical Research Council, British Heart Foundation, Cancer Research UK, Economic and Social Research Council, and the National Institute for Health Research under the auspices of the UK Clinical Research Collaboration (MR/K023195/1)