Bernstein, M E <br/><br/>
Secondary sex-ratio variation.  [electronic resource] 

 -  American journal of human genetics  May 1986 
 - 775 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0002-9297 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Female<br/>Humans<br/>Infant, Newborn<br/>Male<br/>Paternal Age<br/>Sex Ratio