Cook, C H <br/><br/>
An acne grading method using photographic standards.  [electronic resource] 

 -  Archives of dermatology  May 1979 
 - 571-5 p.  digital 
<br/><br/> Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article 
<br/><br/><label>ISSN: </label>0003-987X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acne Vulgaris--classification<br/>Clinical Trials as Topic<br/>Double-Blind Method<br/>Humans<br/>Photography<br/>Placebos<br/>Tetracycline--therapeutic use