Zompatori, M <br/><br/>
Bronchiolitis obliterans with organizing pneumonia (BOOP), presenting as a ring-shaped opacity at HRCT (the atoll sign). A case report.  [electronic resource] 

 -  La Radiologia medica  Apr 1999 
 - 308-10 p.  digital 
<br/><br/> Publication Type: Case Reports; Journal Article 
<br/><br/><label>ISSN: </label>0033-8362 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptogenic Organizing Pneumonia--diagnostic imaging<br/>Humans<br/>Male<br/>Middle Aged<br/>Tomography, X-Ray Computed