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７例多原发性肺癌中３例行二次手术、１例行三次手术治疗，均取得较好的效果，说明多原发性肺癌积极争取二次或多次手术治疗是完全有必要的。
In 7 cases of multiple primary lung cancer, 3 cases underwent secondary surgery and 1 case underwent three operations. All had good results, indicating that it is absolutely necessary to actively fight for secondary or multiple surgical treatment for multiple primary lung cancer.