TI - CUrrent cigarette smoking among adults—united states, 2011 PT - JOUR DP - 2013 TA - JAMA pages = {539-541}, VI - 309 IP - 6 AID - 10.1001/jama.2012.114523 [doi] 4100 - http://dx.doi.org/10.1001/jama.2012.114523 SO - JAMA February 13, 2013 309(6):539