Oliver, Dick <br/><br/>
Obituary: Perry A. Ratcliff, DDS.  [electronic resource] 

 -  Journal of periodontology  Dec 2008 
 - 2215-6 p.  digital 
<br/><br/> Publication Type: Biography; Historical Article; Journal Article; Portrait 
<br/><br/><label>ISSN: </label>0022-3492 
<br/><br/><label>Standard No.: </label>10.1902/jop.2008.0812001  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>History, 20th Century<br/>History, 21st Century<br/>Humans<br/>Periodontics--history<br/>Societies, Dental--history<br/>United States