Tobacco control in California compared with the rest of the USA: trends in adult per capita cigarette consumption
John P Pierce, Yuyan Shi, Erik M Hendrickson, Martha M White, Madison L Noble, Sheila Kealey, David R Strong, Dennis R Trinidad, Anne M Hartman, Karen Messer
Tobacco Control Oct 2018, 27 (e2) e112-e117; DOI: 10.1136/tobaccocontrol-2017-053895