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Provoost V, Pennings G, De Sutter P, Gerris J, Van de Velde A, De Lissnyder E, Dhont M.Provoost V, et al. Among authors: pennings g.Hum Reprod. 2009 Apr;24(4):896-905. doi: 10.1093/humrep/den486. Epub 2009 Jan 9.Hum Reprod. 2009.PMID: 19136479
Provoost V, Pennings G, De Sutter P, Gerris J, Van de Velde A, Dhont M.Provoost V, et al. Among authors: pennings g.Hum Reprod. 2010 Mar;25(3):705-13. doi: 10.1093/humrep/dep387. Epub 2009 Dec 19.Hum Reprod. 2010.PMID: 20023294
Provoost V, Pennings G, De Sutter P, Gerris J, Van de Velde A, Dhont M.Provoost V, et al. Among authors: pennings g.Hum Reprod. 2011 Apr;26(4):861-72. doi: 10.1093/humrep/deq392. Epub 2011 Jan 18.Hum Reprod. 2011.PMID: 21247922