- Correspondence to: Professor A G J van der Zee Department of Gynaecology, Groningen University Medical Centre, Hanzeplein 1, PO Box 30.001, 9700 RB Groningen, Netherlands;
- Received March 7, 2005
- Accepted April 14, 2005
- Revised April 12, 2005
- First published August 1, 2005.
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