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Van Hemel JO, Schaap C, Van Opstal D, Mulder MP, Niermeijer MF, Meijers JH.Van Hemel JO, et al. Among authors: schaap c.J Med Genet. 1995 Aug;32(8):657-8. doi: 10.1136/jmg.32.8.657.J Med Genet. 1995.PMID: 7473663Free PMC article.
Van Buggenhout GJ, Pijkels E, Holvoet M, Schaap C, Hamel BC, Fryns JP.Van Buggenhout GJ, et al. Among authors: schaap c.Am J Med Genet. 2000 Jan 31;90(3):203-15. doi: 10.1002/(sici)1096-8628(20000131)90:3<203::aid-ajmg5>3.0.co;2-a.Am J Med Genet. 2000.PMID: 10678657
Janssen HC, Schaap C, Vandevijver N, Moerman P, de Die-Smulders CE, Fryns JP.Janssen HC, et al. Among authors: schaap c.J Med Genet. 1999 Jun;36(6):481-4.J Med Genet. 1999.PMID: 10874639Free PMC article.Review.