A Stochastic Model for the Normal Tissue Complication Probability (NTCP)   in Radiation Treatment of Cancer
  The normal tissue complication probability (NTCP) is a measure for the estimated side effects of a given radiation treatment schedule. Here we use a stochastic logistic birth death process to define an organ specific and patient specific NTCP. We emphasise an asymptotic simplification which relates the NTCP to the solution of a logistic differential equation. This framework allows for a direct use of the NTCP model in clinical practice. We formulate, but do not solve, related optimization problems. 
Theresa Stocks, Thomas Hillen, Jiafen Gong, Martin Burger
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