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- 01/01/1998
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- 01/01/2003
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- 01/01/1993
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- 01/01/2000
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- 01/01/1998
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- Rijksuniversiteit Gent Faculteit Geneeskunde. Dienst voor hygiëne en sociale geneeskunde
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- 01/01/1990
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- 01/01/2013
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- 01/01/2002
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- 01/01/2011
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- 01/01/1993
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