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Tibben A, Vegter-van der Vlis M, Skraastad MI, Frets PG, van der Kamp JJ, Niermeijer MF, van Ommen GJ, Roos RA, Rooijmans HG, Stronks D, et al.Tibben A, et al. Among authors: frets pg.Am J Med Genet. 1992 Sep 1;44(1):94-9. doi: 10.1002/ajmg.1320440122.Am J Med Genet. 1992.PMID: 1387764
Lindhout D, Frets PG, Niermeijer MF.Lindhout D, et al. Among authors: frets pg.Ann N Y Acad Sci. 1991;630:223-9. doi: 10.1111/j.1749-6632.1991.tb19591.x.Ann N Y Acad Sci. 1991.PMID: 1952593Review.No abstract available.
Tibben A, Duivenvoorden HJ, Vegter-van der Vlis M, Niermeijer MF, Frets PG, van de Kamp JJ, Roos RA, Rooijmans HG, Verhage F.Tibben A, et al. Among authors: frets pg.Am J Med Genet. 1993 Oct 15;48(3):137-44. doi: 10.1002/ajmg.1320480305.Am J Med Genet. 1993.PMID: 8291567