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Submitted on: 23 March 2007.
Revised on: 17 June 2007.
Accepted on: 03 August 2007.
___________________DIGESTIVE SURGERY---KARGER
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Submitted on: 01 June 1999.
Revised on: 01 September 1999.
Accepted on: 22 September 1999.
___________________DIGESTIVE SURGERY---KARGER
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Submitted on: 16 February 2023.
Revised on: 09 May 2023.
Accepted on: 19 May 2023.
___________________DIGESTIVE SURGERY---KARGER
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