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Middeldorp S, van de Poel MH, Bank I, Hamulyák K, Libourel EJ, Koopman MM, Prins MH, van der Meer J, Büller HR.Middeldorp S, et al. Among authors: koopman mm.Thromb Haemost. 2004 Oct;92(4):787-90. doi: 10.1160/TH04-03-0198.Thromb Haemost. 2004.PMID: 15467909
Middeldorp S, Henkens CM, Koopman MM, van Pampus EC, Hamulyák K, van der Meer J, Prins MH, Büller HR.Middeldorp S, et al. Among authors: koopman mm.Ann Intern Med. 1998 Jan 1;128(1):15-20. doi: 10.7326/0003-4819-128-1-199801010-00003.Ann Intern Med. 1998.PMID: 9424976
Turkstra F, Levi M, Koopman MM, Wester JP, Stoutenbeek CP, Briët E.Turkstra F, et al. Among authors: koopman mm.Ned Tijdschr Geneeskd. 1998 Jun 20;142(25):1464-7.Ned Tijdschr Geneeskd. 1998.PMID: 9752060Dutch.
van Pampus MG, Wolf H, Koopman MM, van den Ende A, Buller HR, Reitsma PH.van Pampus MG, et al. Among authors: koopman mm.Hypertens Pregnancy. 2001;20(3):291-8. doi: 10.1081/PRG-100107831.Hypertens Pregnancy. 2001.PMID: 12044337Free article.