What is a hammer toe, and what causes it?  [electronic resource] 

 -  Mayo Clinic health letter (English ed.)  Jul 2002 
 - 8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0741-6245 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Foot Deformities, Acquired--etiology<br/>Humans<br/>Shoes<br/>Toes--abnormalities