Submitted on: 11 April 1998.
Revised on: 03 July 1998.
Accepted on: 04 August 1998.
___________________Journal of Pediatric Health Care
Submitted on: 17 February 2004.
Revised on: 07 June 2004.
Accepted on: 14 July 2004.
___________________Journal of Pediatric Health Care
http://reply.papertrans.cn/2/187/18601/18601-23.png
Submitted on: 26 May 2014.
Revised on: 16 June 2014.
Accepted on: 09 August 2014.
___________________Journal of Pediatric Health Care
http://reply.papertrans.cn/2/187/18601/18601-25.png
Submitted on: 08 March 2003.
Revised on: 10 June 2003.
Accepted on: 05 July 2003.
___________________Journal of Pediatric Health Care
Submitted on: 08 January 2019.
Revised on: 13 April 2019.
Accepted on: 04 May 2019.
___________________Journal of Pediatric Health Care
Submitted on: 07 July 2020.
Revised on: 07 October 2020.
Accepted on: 09 November 2020.
___________________Journal of Pediatric Health Care
Submitted on: 16 August 2008.
Revised on: 21 September 2008.
Accepted on: 16 October 2008.
___________________Journal of Pediatric Health Care
Submitted on: 30 June 2008.
Revised on: 10 August 2008.
Accepted on: 29 August 2008.
___________________Journal of Pediatric Health Care