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Submitted on: 29 May 1999.
Revised on: 09 July 1999.
Accepted on: 23 August 1999.
___________________Journal of Pediatric Health Care
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Submitted on: 12 January 2019.
Revised on: 12 March 2019.
Accepted on: 09 May 2019.
___________________Journal of Pediatric Health Care
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Submitted on: 01 May 2001.
Revised on: 18 August 2001.
Accepted on: 13 October 2001.
___________________Journal of Pediatric Health Care