Submitted on: 08 July 2001.
Revised on: 16 August 2001.
Accepted on: 27 September 2001.
___________________Annals of Cardiothoracic Surgery
Submitted on: 26 June 2018.
Revised on: 07 October 2018.
Accepted on: 24 November 2018.
___________________Annals of Cardiothoracic Surgery
Submitted on: 03 September 2020.
Revised on: 28 October 2020.
Accepted on: 06 December 2020.
___________________Annals of Cardiothoracic Surgery
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Submitted on: 05 January 1998.
Revised on: 30 January 1998.
Accepted on: 25 March 1998.
___________________Annals of Cardiothoracic Surgery
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http://reply.papertrans.cn/1/18/1756/1756-27.png
http://reply.papertrans.cn/1/18/1756/1756-28.png
Submitted on: 24 August 2003.
Revised on: 24 October 2003.
Accepted on: 06 November 2003.
___________________Annals of Cardiothoracic Surgery
Submitted on: 23 May 1998.
Revised on: 06 September 1998.
Accepted on: 27 October 1998.
___________________Annals of Cardiothoracic Surgery