2002 Aug 29: Placed on BCW site.

 2002 Aug 27: Declined by 'Nature'.

 2002 Aug 16: Submitted to 'Nature'.

 2002 Aug 10: Topic written up.

 2002 Jun 16: Research in full flow.

 2002 Jun 15: Concept formulated.

 2002 Jun 13: Research begun.

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