Fijalkowski, W <br/><br/>
[Biological rhythm and fertility].  [electronic resource] 

 -  Pielegniarka i polozna  Apr 1973 
 - 6-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0048-4148 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological Clocks<br/>Body Temperature<br/>Contraception