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Tobacco products have traditionally contained nicotine that is extracted from tobacco leaves
A DSM-5 SUD diagnosis requires the presence of two or more of the following criteria (as measured in the 2020 NSDUH) in a 12-month period: Questions were added to the 2020 NSDUH questionnaire to assess craving, marijuana withdrawal, and tranquilizer withdrawal

On October 30, 1990, the Department of Health Services (DHS), which was implementing all the Proposition 99 anti-tobacco education programs except the school-based programs, estimated that California had 750,000 fewer smokers than it would have had if Proposition 99 had not passed, that the percentage of smokers over the age of twenty had dropped from 24.6 percent to 21.2 percent, that tobacco consumption was down 14 percent, and that between 62 percent and 85 percent of the target groups were aware of the media campaign.1 2 With such a strong early-performance record, public health advocates should have been in a position to protect the Health Education Account from the tobacco industry and its allies who wanted to see more money go to medical services