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van Steenbergen TJ, Petit MD, Tijhof CJ, van Winkelhoff AJ, van der Velden U, de Graaff J.van Steenbergen TJ, et al. Among authors: van winkelhoff aj, van der velden u.Oral Microbiol Immunol. 1993 Dec;8(6):370-4. doi: 10.1111/j.1399-302x.1993.tb00613.x.Oral Microbiol Immunol. 1993.PMID: 8152838
van Steenbergen TJ, Van der Velden U, Abbas F, de Graaff J.van Steenbergen TJ, et al. Among authors: van der velden u.J Periodontol. 1991 Apr;62(4):235-41. doi: 10.1902/jop.1991.62.4.235.J Periodontol. 1991.PMID: 1645404
Petit MD, van Steenbergen TJ, Timmerman MF, de Graaff J, van der Velden U.Petit MD, et al. Among authors: van der velden u, van steenbergen tj.J Clin Periodontol. 1994 Feb;21(2):76-85. doi: 10.1111/j.1600-051x.1994.tb00283.x.J Clin Periodontol. 1994.PMID: 8144737
Petit MD, van Steenbergen TJ, Scholte LM, van der Velden U, de Graaff J.Petit MD, et al. Among authors: van der velden u, van steenbergen tj.J Clin Periodontol. 1993 Oct;20(9):641-50. doi: 10.1111/j.1600-051x.1993.tb00709.x.J Clin Periodontol. 1993.PMID: 8227451
Petit MD, van Winkelhoff AJ, van Steenbergen TJ, de Graaff J.Petit MD, et al. Among authors: van winkelhoff aj, van steenbergen tj.Oral Microbiol Immunol. 1993 Aug;8(4):219-24. doi: 10.1111/j.1399-302x.1993.tb00563.x.Oral Microbiol Immunol. 1993.PMID: 8247609
van Steenbergen TJ, van der Velden U, Abbas F, de Graaff J.van Steenbergen TJ, et al. Among authors: van der velden u.J Periodontol. 1993 Jan;64(1):40-7. doi: 10.1902/jop.1993.64.1.40.J Periodontol. 1993.PMID: 8381179