Submitted on: 16 February 2004.
Revised on: 12 March 2004.
Accepted on: 29 March 2004.
PEDIATRIC RESEARCH---SPRINGERNATURE
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Submitted on: 11 November 2004.
Revised on: 24 November 2004.
Accepted on: 12 December 2004.
PEDIATRIC RESEARCH
Submitted on: 22 January 2010.
Revised on: 02 March 2010.
Accepted on: 09 March 2010.
PEDIATRIC RESEARCH---SPRINGERNATURE
Submitted on: 11 August 2017.
Revised on: 22 September 2017.
Accepted on: 08 October 2017.
PEDIATRIC RESEARCH
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Submitted on: 04 December 1998.
Revised on: 04 January 1999.
Accepted on: 17 January 1999.
PEDIATRIC RESEARCH