Newman, Byron Y <br/><br/>
Crying serves a purpose.  [electronic resource] 

 -  Optometry (St. Louis, Mo.)  Mar 2011 
 - 132 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1558-1527 
<br/><br/><label>Standard No.: </label>10.1016/j.optm.2011.02.001  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crying--psychology<br/>Emotions<br/>Humans