The introduction and proliferation of filtered cigarettes occurred mostly in the decades preceding and following the 1964 Surgeon General's report and was mostly complete by 1974. Further reductions in tar yield occurred through other mechanisms, as by 1974, most cigarette brands were filtered.

The Rest of the Story

According to an in the Philadelphia Inquirer: "The tax, anticipated to bring in $1.6 million per week, could raise $45 million this year and $83 million in the first full year. The Philadelphia School District has a $93 million budget deficit."

These data all but destroy the gateway hypothesis. They demonstrate that at the current time, the evidence simply does not support the assertion that the proliferation of e-cigarette use among youth is leading to increased smoking initiation. Electronic cigarettes are not leading to a lifetime addiction to cigarette smoking among our nation's youth.

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