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Schotanus BA, de Gier J, van der Lugt JJ, Okkens AC.Schotanus BA, et al. Among authors: okkens ac.Reprod Domest Anim. 2008 Apr;43(2):176-80. doi: 10.1111/j.1439-0531.2007.00874.x. Epub 2007 Nov 7.Reprod Domest Anim. 2008.PMID: 17986174
de Gier J, Buijtels JJ, Albers-Wolthers CH, Oei CH, Kooistra HS, Okkens AC.de Gier J, et al. Among authors: okkens ac.Theriogenology. 2012 Mar 15;77(5):967-78. doi: 10.1016/j.theriogenology.2011.10.003. Epub 2011 Dec 6.Theriogenology. 2012.PMID: 22153274