Table 2.

Value of the critical time delay ${\tau }_c$ for some cancers.

Type of cancer	Values $q_0$ and d	Value of the critical time delay ${\tau }_c$
Prostate cancer	$q_0$ = 87.6 ${\text{year}}^{-1}$, d = 87.2 ${\text{year}}^{-1}$9,20,38	11.8964 $\text{years}$
Lung cancer	$q_0$= 109.97 ${\text{year}}^{-1}$, d = 80 ${\text{year}}^{-1}$39–41	0.6287 $\text{year}$
Breast cancer	$q_0$ = 70.39 ${\text{year}}^{-1}$, $d=$ 45 ${\text{year}}^{-1}$42,43	0.5858 $\text{year}$