Submitted on: 18 April 2004.
Revised on: 01 May 2004.
Accepted on: 13 May 2004.
PHLEBOLOGIE---GEORG THIEME VERLAG KG
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Submitted on: 22 November 1998.
Revised on: 13 December 1998.
Accepted on: 25 December 1998.
PHLEBOLOGIE---GEORG THIEME VERLAG KG
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