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Submitted on: 26 June 2001.
Revised on: 21 July 2001.
Accepted on: 06 August 2001.
QUARTERLY REVIEW OF BIOLOGY---UNIV CHICAGO PRESS
Submitted on: 16 July 2008.
Revised on: 12 August 2008.
Accepted on: 07 September 2008.
QUARTERLY REVIEW OF BIOLOGY
Submitted on: 03 December 2013.
Revised on: 28 December 2013.
Accepted on: 02 January 2014.
QUARTERLY REVIEW OF BIOLOGY---UNIV CHICAGO PRESS
Submitted on: 04 December 1999.
Revised on: 16 December 1999.
Accepted on: 05 January 2000.
QUARTERLY REVIEW OF BIOLOGY---UNIV CHICAGO PRESS
Submitted on: 23 February 2008.
Revised on: 10 March 2008.
Accepted on: 28 March 2008.
QUARTERLY REVIEW OF BIOLOGY
Submitted on: 06 November 2010.
Revised on: 17 December 2010.
Accepted on: 30 December 2010.
QUARTERLY REVIEW OF BIOLOGY---UNIV CHICAGO PRESS