Submitted on: 18 April 2004.
Revised on: 15 August 2004.
Accepted on: 27 September 2004.
___________________Journal of the American Association for Laboratory Animal Science
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Submitted on: 05 August 1999.
Revised on: 25 October 1999.
Accepted on: 10 December 1999.
___________________Journal of the American Association for Laboratory Animal Science
Submitted on: 17 September 2022.
Revised on: 11 October 2022.
Accepted on: 08 November 2022.
___________________Journal of the American Association for Laboratory Animal Science