Peach, H <br/><br/>
Phlegm production and lung function among cigarette smokers changing tar groups during the 1970s.  [electronic resource] 

 -  Journal of epidemiology and community health  Jun 1986 
 - 110-6 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0143-005X 
<br/><br/><label>Standard No.: </label>10.1136/jech.40.2.110  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Follow-Up Studies<br/>Humans<br/>Lung--physiology<br/>Male<br/>Middle Aged<br/>Models, Biological<br/>Mucus--analysis<br/>Nicotine--analysis<br/>Plants, Toxic<br/>Smoking<br/>Tars--analysis<br/>Nicotiana--analysis<br/>United Kingdom