Casserly Brian, Atalay Michael K, Poppas Athena, Klinger James R, Abu-Hijleh Muhanned
The Brown Alpert Medical School, Department of Diagnostic Imaging, Rhode Island Hospital, Providence, RI 02903, USA.
Thorax. 2011 Apr;66(4):285-6, 313-4. doi: 10.1136/thx.2010.141689.