Klassen, Ann C <br/><br/>
Secondhand Smoke Exposure and Smoke-free Policy in Philadelphia Public Housing.  [electronic resource] 

 -  Tobacco regulatory science  Apr 2017 
 - 192-203 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>2333-9748 
<br/><br/><label>Standard No.: </label>10.18001/TRS.3.2.7  doi