Submitted on: 18 February 2001.
Revised on: 05 April 2001.
Accepted on: 21 May 2001.
___________________Contact Lens & Anterior Eye---ELSEVIER
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Submitted on: 28 March 2006.
Revised on: 22 June 2006.
Accepted on: 04 July 2006.
___________________Contact Lens & Anterior Eye---ELSEVIER
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Submitted on: 27 May 2004.
Revised on: 15 August 2004.
Accepted on: 14 September 2004.
___________________Contact Lens & Anterior Eye---ELSEVIER
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