Table 2.

Model reaction to a 5%-perturbation of the fitting parameters

	$\delta P$(2 weeks)	$\delta P$ (4 weeks)	$\delta P$ (6 weeks)	$\delta P$ (8 weeks)
$\delta \alpha =+5\%$	1%	15%	21%	22%
$\delta R_0=+5\%$	20%	21%	21%	21%
$\delta R_{\infty }=+5\%$	0%	4%	7%	9%