Fig. 1From: Cost-effectiveness and health impact of lung cancer screening with low-dose computed tomography for never smokers in Japan and the United States: a modelling studySchematic depiction of a Markov cycle tree in a state-transition model. Health states in the model are indicated with ovals. Over the course of a year-long model cycle, transitions between one health state and another may occur, which are indicated by pointing arrowheads. NSCLC non-small cell lung cancerBack to article page