Ashtray availability, signage may determine success of smoke-free legislation
Science Daily,
Signs banning smoking may not have as much of an impact on secondhand smoke concentrations as the presence of ashtrays or…
Signs banning smoking may not have as much of an impact on secondhand smoke concentrations as the presence of ashtrays or…
Signs banning smoking may not have as much of an impact on secondhand smoke concentrations as the presence of ashtrays or…
Signs banning smoking may not have as much of an impact on secondhand smoke concentrations as the presence of ashtrays or…
( Public Library of Science ) Signs banning smoking may not have as much of an impact on secondhand smoke concentrations as the…