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Submitted on: 29 September 2000.
Revised on: 21 January 2001.
Accepted on: 22 February 2001.
___________________Ginekologia Polska---VIA MEDICA
Submitted on: 16 January 2003.
Revised on: 03 March 2003.
Accepted on: 03 April 2003.
___________________Ginekologia Polska---VIA MEDICA
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