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Jespersen S, Niessen WM, Tjaden UR, van der Greef J.Jespersen S, et al. Among authors: niessen wm.J Mass Spectrom. 1998 Nov;33(11):1088-93. doi: 10.1002/(SICI)1096-9888(199811)33:11<1088::AID-JMS725>3.0.CO;2-8.J Mass Spectrom. 1998.PMID: 9835066
Niessen WM, van der Hoeven RA, van der Greef J, Schols HA, Voragen AG.Niessen WM, et al.Rapid Commun Mass Spectrom. 1992 Mar;6(3):197-202. doi: 10.1002/rcm.1290060309.Rapid Commun Mass Spectrom. 1992.PMID: 1554899
Lamoree MH, Reinhoud NJ, Tjaden UR, Niessen WM, van der Greef J.Lamoree MH, et al. Among authors: niessen wm.Biol Mass Spectrom. 1994 Jun;23(6):339-45. doi: 10.1002/bms.1200230607.Biol Mass Spectrom. 1994.PMID: 7913626
Jespersen S, Ploemen JH, van Bladeren PJ, Niessen WM, Tjaden UR, van der Greef J.Jespersen S, et al. Among authors: niessen wm.J Mass Spectrom. 1996 Jan;31(1):101-7. doi: 10.1002/(SICI)1096-9888(199601)31:1<101::AID-JMS265>3.0.CO;2-J.J Mass Spectrom. 1996.PMID: 8925505
van Bakergem E, van der Hoeven RA, Niessen WM, Tjaden UR, van der Greef J, Poon GK, McCague R.van Bakergem E, et al. Among authors: niessen wm.J Chromatogr. 1992 May 15;598(2):189-94. doi: 10.1016/0021-9673(92)85047-w.J Chromatogr. 1992.PMID: 1618979
Reinhoud NJ, Schröder E, Tjaden UR, Niessen WM, ten Noever de Brauw MC, van der Greef J.Reinhoud NJ, et al. Among authors: niessen wm.J Chromatogr. 1990 Sep 7;516(1):147-55. doi: 10.1016/s0021-9673(01)90212-2.J Chromatogr. 1990.PMID: 2286620
Niessen WM, de Kraa MA, Verheij ER, Bergers PJ, La Vos GF, Tjaden UR, van der Greef J.Niessen WM, et al.Rapid Commun Mass Spectrom. 1989 Jan;3(1):1-4. doi: 10.1002/rcm.1290030102.Rapid Commun Mass Spectrom. 1989.PMID: 2520214
Karnaukhova E, Niessen WM, Tjaden UR, Raap J, Lugtenburg J, van der Greef J.Karnaukhova E, et al. Among authors: niessen wm.Anal Biochem. 1989 Sep;181(2):271-5. doi: 10.1016/0003-2697(89)90242-x.Anal Biochem. 1989.PMID: 2817391