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Logistic NTCP
NTCP = 0.09231
N
T
C
P
=
[
1
+
exp
(
−
4
γ
50
D
−
T
D
50
T
D
50
)
]
−
1
\mathrm{NTCP}=\left[1+\exp\left(-4\gamma_{50}\frac{D-TD_{50}}{TD_{50}}\right)\right]^{-1}
NTCP
=
[
1
+
exp
(
−
4
γ
50
T
D
50
D
−
T
D
50
)
]
−
1
NTCP = 1 / (1 + exp(−4 γ₅₀ (D − TD₅₀)/TD₅₀)).
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