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- 01/09/2007
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- 01/01/2006
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- 'BMJ'
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- 01/09/2007
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- 01/05/2007
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- 01/01/2010
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- 01/01/1995
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- 01/01/2002
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- 01/01/2000
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- 01/01/2006
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- 01/01/2008
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