An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
van Steenbergen TJ, van Winkelhoff AJ, de Graaff J.van Steenbergen TJ, et al. Among authors: de graaff j.FEMS Immunol Med Microbiol. 1993 Mar;6(2-3):83-8. doi: 10.1111/j.1574-695X.1993.tb00307.x.FEMS Immunol Med Microbiol. 1993.PMID: 8390896Review.
van Steenbergen TJ, van Winkelhoff AJ, van der Velden U, de Graaff J.van Steenbergen TJ, et al. Among authors: de graaff j.Infection. 1989 May-Jun;17(3):194-6. doi: 10.1007/BF01644029.Infection. 1989.PMID: 2737764
van Winkelhoff AJ, van Steenbergen TJ, de Graaff J.van Winkelhoff AJ, et al. Among authors: de graaff j.J Clin Periodontol. 1988 Mar;15(3):145-55. doi: 10.1111/j.1600-051x.1988.tb01561.x.J Clin Periodontol. 1988.PMID: 3280611Review.
van Winkelhoff AJ, Clement M, de Graaff J.van Winkelhoff AJ, et al. Among authors: de graaff j.J Clin Microbiol. 1988 May;26(5):1063-5. doi: 10.1128/jcm.26.5.1063-1065.1988.J Clin Microbiol. 1988.PMID: 3290235Free PMC article.
van Steenbergen TJ, Petit MD, Tijhof CJ, van Winkelhoff AJ, van der Velden U, de Graaff J.van Steenbergen TJ, et al. Among authors: de graaff j.Oral Microbiol Immunol. 1993 Dec;8(6):370-4. doi: 10.1111/j.1399-302x.1993.tb00613.x.Oral Microbiol Immunol. 1993.PMID: 8152838
Petit MD, van Steenbergen TJ, Scholte LM, van der Velden U, de Graaff J.Petit MD, et al. Among authors: de graaff j.J Clin Periodontol. 1993 Oct;20(9):641-50. doi: 10.1111/j.1600-051x.1993.tb00709.x.J Clin Periodontol. 1993.PMID: 8227451
Van Steenbergen TJ, Menard C, Tijhof CJ, Mouton C, De Graaff J.Van Steenbergen TJ, et al. Among authors: de graaff j.J Med Microbiol. 1993 Dec;39(6):416-21. doi: 10.1099/00222615-39-6-416.J Med Microbiol. 1993.PMID: 8246259
Petit MD, van Winkelhoff AJ, van Steenbergen TJ, de Graaff J.Petit MD, et al. Among authors: de graaff j.Oral Microbiol Immunol. 1993 Aug;8(4):219-24. doi: 10.1111/j.1399-302x.1993.tb00563.x.Oral Microbiol Immunol. 1993.PMID: 8247609