Reinforcement learning strategies in cancer chemotherapy treatments: A review

•Surveying in-depth details in the development of computer aided dynamic treatment regimens (DTR), especially, the DTR for cancer chemotherapy treatment.•Collecting new inspirations from reinforcement learning techniques, which are involved or potentially relevant for approaching cancer chemotherapy DTR problem practically.•Highlighting potential answers associated with the specific obstacles and open topics in problem domain which reinforcement learning can manage and tackle down.