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Spannagl M, Dooijewaard G, Dietrich W, Kluft C.Spannagl M, et al.Thromb Haemost. 1995 May;73(5):825-8.Thromb Haemost. 1995.PMID: 7482410Clinical Trial.
Kluft C, de Maat MP, Heinemann LA, Spannagl M, Schramm W.Kluft C, et al. Among authors: spannagl m.Lancet. 1999 Sep 4;354(9181):832-3. doi: 10.1016/s0140-6736(99)80017-8.Lancet. 1999.PMID: 10485729
Heinemann LA, Kluft C, Spannagl M, de Maat MP.Heinemann LA, et al. Among authors: spannagl m.Contraception. 2002 Nov;66(5):297-304. doi: 10.1016/s0010-7824(02)00388-8.Contraception. 2002.PMID: 12443958
Heinemann LA, Assmann A, Spannagl M, Schramm W, Dick A, Kluft C, de Maat MP.Heinemann LA, et al. Among authors: spannagl m.Contraception. 1998 Nov;58(5):321-2. doi: 10.1016/s0010-7824(98)00111-5.Contraception. 1998.PMID: 9883389