Fig. 1From: Construction and validation of a nomogram to predict the overall survival of small cell lung cancer: a multicenter retrospective study in Shandong province, ChinaFlowchart of patients with small cell lung cancer screening and dividing. Note: socio-demographic information including age, sex, smoking status, alcohol use status, health insurance, region, and attending hospital; treatment information including surgery, chemotherapy, and radiotherapyBack to article page