Submitted on: 22 June 2009.
Revised on: 17 September 2009.
Accepted on: 02 November 2009.
___________________CLINICAL AUTONOMIC RESEARCH---SPRINGER HEIDELBERG
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Submitted on: 24 July 1998.
Revised on: 26 October 1998.
Accepted on: 28 November 1998.
___________________CLINICAL AUTONOMIC RESEARCH---SPRINGER HEIDELBERG
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