Kostrzewski, J <br/><br/>
[Infectious diseases in Poland 1987].  [electronic resource] 

 -  Przeglad epidemiologiczny  1989 
 - 1-9 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0033-2100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Age Factors<br/>Child<br/>Communicable Diseases--epidemiology<br/>Humans<br/>Poland