In January 2020, the U.S. Surgeon General released a new report on smoking cessation (Smoking Cessation: A Report of the Surgeon General). The report updates and expands on the 1990 report (The Health Benefits of Smoking Cessation), outlining latest research on smoking cessation treatments, and serving as a “call-to-action” to ensure that cessation treatments are accessible to people who need them.
https://www.cdc.gov/tobacco/sgr/2020-smoking-cessation/index.html#full-report