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Johansen KM, Skorpe S, Olsen JO, Osterud B.Johansen KM, et al. Among authors: osterud b.Thromb Res. 1999 Dec 1;96(5):355-63. doi: 10.1016/s0049-3848(99)00120-6.Thromb Res. 1999.PMID: 10605950Clinical Trial.