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Submitted on: 18 April 1998.
Revised on: 20 June 1998.
Accepted on: 02 August 1998.
___________________Giornale Italiano di Cardiologia
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Submitted on: 29 May 2000.
Revised on: 24 June 2000.
Accepted on: 27 July 2000.
___________________Giornale Italiano di Cardiologia
Submitted on: 19 March 2018.
Revised on: 26 April 2018.
Accepted on: 06 June 2018.
___________________Giornale Italiano di Cardiologia
Submitted on: 08 March 2004.
Revised on: 02 May 2004.
Accepted on: 17 May 2004.
___________________Giornale Italiano di Cardiologia
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Submitted on: 03 June 2020.
Revised on: 10 July 2020.
Accepted on: 16 August 2020.
___________________Giornale Italiano di Cardiologia
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