Cheng, Yong-e <br/><br/>
[Use of exhaled thoron activity measurement system in radiological labor hygiene].  [electronic resource] 

 -  Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases  Mar 2009 
 - 189-90 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1001-9391 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Breath Tests<br/>Humans<br/>Mining<br/>Pneumoconiosis--diagnosis<br/>Radon--analysis