Nicholson, G W <br/><br/>
CANCER AND CAUSATION.  [electronic resource] 

 -  British medical journal  Mar 1935 
 - 650-1 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0007-1447 
<br/><br/><label>Standard No.: </label>10.1136/bmj.1.3873.650  doi