Advertisement Article continues below this ad The process has started, and it has been incredibly difficult, said Matthew Myers, president of Campaign for Tobacco-Free Kids, a health advocacy group, who generally welcomed the rules
(7,12,14,16,21,23,25-27,29) Regarding the distribution of the items by factor, questions 3 and 5 are believed to belong to a single factor related to the urgency to restore nicotine levels (factor 2, designated the "Smoking Pattern" factor), whereas questions 2, 4 and 6 are thought to be part of another factor related to the pattern of consumption (factor 1, designated the "Morning Pattern" factor)
Visualization: Yu Kyung Jun
L 4 3/8 x W 2 7/8 in