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Submitted on: 16 March 2006.
Revised on: 04 May 2006.
Accepted on: 14 June 2006.
___________________JOURNAL OF PERINATAL MEDICINE---WALTER DE GRUYTER GMBH
Submitted on: 01 September 2001.
Revised on: 11 November 2001.
Accepted on: 24 November 2001.
___________________JOURNAL OF PERINATAL MEDICINE---WALTER DE GRUYTER GMBH
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