Dynamic Analysis of a Tumor-Immune System under Allee Effect

Table 1

The definitions and corresponding value of variables in models (2) and (19).

Parameter	Definition	Value	Source
	Constant source of effector cells	0.33	[21, 23]
	Maximum effector cells recruitment rate by tumor cells	0.01	[20, 21]
	Steepness coefficient of the effector cells recruitment	0.3	[20, 22]
	Effector cells inactivation rate by tumor cells	1.0	[23, 24]
	Death rate of effector cells	0.2	[20, 29]
	Normal cells’ growth rate	1.0	[20, 25]
	Tumor growth rate	1.5	[26, 27]
	Reciprocal of tumor carrying capacity	1.0	[20, 28]
	Reciprocal of normal cells’ carrying capacity	1.0	[20, 28]
	Fractional normal cells killed by tumor cells	1.0	[23, 24]
	Fractional tumor cells killed by effector cells	0.5	[23, 24]
	Inactivation rate of tumor cells owing competition with normal cells	1.0	[20, 23]
	Threshold value of Allee effect