Heavy smoking rate trends and related factors in Korean occupational groups: analysis of KNHANES 2007–2012 data

Por Kim, Bo-Guen, Pang, Do-Dam, Park, Young-Jun, Lee, Jong-In, Kim, Hyoung-Ryoul, Myong, Jun-Pyo, Jang, Tae-Won
Publicado no BMJ Open (2015)