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Preserving the motility of microorganisms.
Petit MD, Van der Velden U, Van Winkelhoff AJ, De Graaff J. Petit MD, et al. Among authors: de graaff j. Oral Microbiol Immunol. 1991 Apr;6(2):107-10. doi: 10.1111/j.1399-302x.1991.tb00460.x. Oral Microbiol Immunol. 1991. PMID: 1945484
A statistical approach to the ecology of Porphyromonas gingivalis.
Loos BG, Van Winkelhoff AJ, Dunford RG, Genco RJ, De Graaff J, Dickinson DP, Dyer DW. Loos BG, et al. Among authors: de graaff j. J Dent Res. 1992 Feb;71(2):353-8. doi: 10.1177/00220345920710020201. J Dent Res. 1992. PMID: 1313462
336 results