highly significantp<0.0001
As shown in Fig 2 , plaques formed in the RAP-treated cultures were smaller and less numerous (mean = 199.3, SD = 9.2, n = 54) than those formed in the control wells (mean = 329.1, SD = 6.7, n = 205), with a two-tailed independent t-test revealing this difference to be highly significant (t = 9.290, d.f. = 257, p<0.0001).