Prognosis of Small Cell Lung Cancer with Idiopathic Pulmonary Fibrosis: Assessment according to GAP Stage

Figure 1

Patient recruitment flow chart. Abbreviations: CTD-UIP, connective tissue disease-related usual interstitial pneumonia; GAP, gender, age, and physiology; SCLC-IPF, small cell lung cancer with idiopathic pulmonary fibrosis.