Pascual Leone, A <br/><br/>
[Practical problems of early diagnosis of primary malignant tumors of the lung].  [electronic resource] 

 -  Revista clinica espanola  Nov 1970 
 - 225-32 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0014-2565 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Bronchography<br/>Humans<br/>Lung Neoplasms--diagnosis<br/>Male<br/>Middle Aged<br/>Sputum--analysis<br/>Time Factors