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Submitted on: 04 October 1999.
Revised on: 22 December 1999.
Accepted on: 14 January 2000.
___________________Acta Paulista de Enfermagem---UNIV FED SAO PAULO, DEPT ENFERMAGEN
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Submitted on: 05 February 2017.
Revised on: 05 May 2017.
Accepted on: 27 May 2017.
___________________Acta Paulista de Enfermagem---UNIV FED SAO PAULO, DEPT ENFERMAGEN
Submitted on: 03 March 2023.
Revised on: 15 May 2023.
Accepted on: 06 July 2023.
___________________Acta Paulista de Enfermagem---UNIV FED SAO PAULO, DEPT ENFERMAGEN
Submitted on: 18 September 2001.
Revised on: 19 October 2001.
Accepted on: 17 December 2001.
___________________Acta Paulista de Enfermagem---UNIV FED SAO PAULO, DEPT ENFERMAGEN
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Submitted on: 03 December 2009.
Revised on: 02 February 2010.
Accepted on: 22 February 2010.
___________________Acta Paulista de Enfermagem---UNIV FED SAO PAULO, DEPT ENFERMAGEN
Submitted on: 14 April 2007.
Revised on: 20 June 2007.
Accepted on: 26 July 2007.
___________________Acta Paulista de Enfermagem---UNIV FED SAO PAULO, DEPT ENFERMAGEN