- Correspondence to Masanori Akira, Department of Radiology, NHO Kinki-Chuo Chest Medical Center, 1180 Nagasone-cho, Kita-ku, Sakai City, Osaka 591-8555, Japan;
- Received April 13, 2010
- Accepted September 16, 2010
- First published November 11, 2010.
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