Parazzini, F <br/><br/>
Trends in male:female ratio among newborn infants in 29 countries from five continents.  [electronic resource] 

 -  Human reproduction (Oxford, England)  May 1998 
 - 1394-6 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't 
<br/><br/><label>ISSN: </label>0268-1161 
<br/><br/><label>Standard No.: </label>10.1093/humrep/13.5.1394  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Americas<br/>Australia<br/>Databases, Factual<br/>Europe<br/>Female<br/>Humans<br/>Infant, Newborn<br/>Japan<br/>Male<br/>New Zealand<br/>Sex Ratio<br/>Time Factors<br/>World Health Organization