Submitted on: 24 July 2001.
Revised on: 28 October 2001.
Accepted on: 18 November 2001.
___________________AMERICAN JOURNAL OF ROENTGENOLOGY
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Submitted on: 02 March 2005.
Revised on: 24 May 2005.
Accepted on: 07 June 2005.
___________________AMERICAN JOURNAL OF ROENTGENOLOGY
Submitted on: 02 December 2002.
Revised on: 15 March 2003.
Accepted on: 15 April 2003.
___________________AMERICAN JOURNAL OF ROENTGENOLOGY
Submitted on: 30 January 2002.
Revised on: 07 May 2002.
Accepted on: 04 July 2002.
___________________AMERICAN JOURNAL OF ROENTGENOLOGY
Submitted on: 11 January 2009.
Revised on: 16 April 2009.
Accepted on: 31 May 2009.
___________________AMERICAN JOURNAL OF ROENTGENOLOGY