RT Article T1 Adult current smoking: Differences in definitions and prevalence estimates--NHIS and NSDUH, 2008 JF Journal of environmental and public health VO 2012 IS Article ID 918368 A1 Ryan, Heather A2 Gfroerer, Joe A2 Trosclair, Angela LA English YR 2012 UL https://krimdok.uni-tuebingen.de/Record/1912451247 DO 10.1155/2012/918368