Shear, M <br/><br/>
Paradontal disease as a phase in evolution. A hypothesis.  [electronic resource] 

 -  The Journal of the Dental Association of South Africa = Die Tydskrif van die Tandheelkundige Vereniging van Suid-Afrika  Aug 1966 
 - 255-62 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0011-8516 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological Evolution<br/>Humans<br/>Periodontal Diseases<br/>Periodontium--anatomy & histology<br/>Tooth--anatomy & histology