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CIP治疗前后胸部CT。A：治疗前胸部CT（2019年10月28日）；B：糖皮质激素大剂量冲击治疗后胸部CT（2019年11月18日）；C：吡非尼酮治疗8月余后胸部CT（2020年7月14日）；
Chest CT before and after treatment of CIP. A: Chest CT before treatment (October 28, 2019); B: Chest CT after high-dose glucocorticoid pulse therapy (November 18, 2019); C: Chest CT after pirfenidone treatment for more than 8 months (July 14, 2020).
