Lech, M <br/><br/>
[Use of data obtained from national census for medical research purposes].  [electronic resource] 

 -  Polski tygodnik lekarski (Warsaw, Poland : 1960)  Aug 1973 
 - 1333-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0032-3756 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Demography<br/>Female<br/>Humans<br/>Morbidity<br/>Poland<br/>Population Surveillance<br/>Reproduction<br/>Research<br/>Sex Factors<br/>Vital Statistics