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近年来随着防癌普查工作的广泛开展和实验性肿瘤诱发过程的深入研究,发现了很多所谓“癌前病变”的疾病或病理变化,这方面课题成了癌
In recent years, with the extensive development of anti-cancer census work and the in-depth study of experimental tumor-induction processes, many diseases or pathological changes have been discovered in so-called “precancerous lesions.” This area has become cancerous.