Figure 2

Platelet 5-HT levels. Normal platelet 5-HT concentrations reported in published reports (a [6], b [19], c [7], d [8], e [9]; the circles are the means and the bars indicate the range), compared with the theoretical values obtained with α = 0 (square) and α > 0. The values of the other parameters are given in Table 1 and β = 0. The theoretical platelet 5-HT concentrations reach a limit when α is large (inset).