Lindhe, J <br/><br/>
Progression of periodontal disease in adult subjects in the absence of periodontal therapy.  [electronic resource] 

 -  Journal of clinical periodontology  Jul 1983 
 - 433-42 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0303-6979 
<br/><br/><label>Standard No.: </label>10.1111/j.1600-051x.1983.tb01292.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adolescent<br/>Adult<br/>Female<br/>Humans<br/>Male<br/>Middle Aged<br/>Periodontal Diseases--pathology<br/>Periodontal Ligament--pathology<br/>Time Factors