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Groenink L, van der Gugten J, Zethof T, van der Heyden J, Olivier B.Groenink L, et al.Physiol Behav. 1994 Oct;56(4):747-9. doi: 10.1016/0031-9384(94)90237-2.Physiol Behav. 1994.PMID: 7800743
Groenink L, Compaan J, van der Gugten J, Zethof T, van der Heyden J, Olivier B.Groenink L, et al.Ann N Y Acad Sci. 1995 Dec 29;771:252-6. doi: 10.1111/j.1749-6632.1995.tb44686.x.Ann N Y Acad Sci. 1995.PMID: 8597404No abstract available.