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Submitted on: 07 March 2003.
Revised on: 04 June 2003.
Accepted on: 12 July 2003.
___________________Journal of Nursing Research---LIPPINCOTT WILLIAMS & WILKINS
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Submitted on: 28 June 2008.
Revised on: 23 July 2008.
Accepted on: 12 August 2008.
___________________Journal of Nursing Research---LIPPINCOTT WILLIAMS & WILKINS