Jo, Catherine L <br/><br/>
Price-related promotions for tobacco products on Twitter.  [electronic resource] 

 -  Tobacco control  07 2016 
 - 476-9 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, N.I.H., Extramural 
<br/><br/><label>ISSN: </label>1468-3318 
<br/><br/><label>Standard No.: </label>10.1136/tobaccocontrol-2015-052260  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commerce--economics<br/>Cross-Sectional Studies<br/>Electronic Nicotine Delivery Systems--economics<br/>Humans<br/>Social Media<br/>Tobacco Products--economics