Zack, B G <br/><br/>
XXYY syndrome discovered on routine physical examination.  [electronic resource] 

 -  Journal of adolescent health care : official publication of the Society for Adolescent Medicine  Sep 1980 
 - 60-2 p.  digital 
<br/><br/> Publication Type: Case Reports; Journal Article 
<br/><br/><label>ISSN: </label>0197-0070 
<br/><br/><label>Standard No.: </label>10.1016/s0197-0070(80)80012-x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Humans<br/>Male<br/>Physical Examination<br/>Sex Chromosome Aberrations--diagnosis