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A total of 1,048 lung cancer cases obtained from the First Affiliated Hospital of Guangzhou Medical College from 1978-94 were reviewed. According to WHO's lung cancer classification, the proportion of squamous cell carcinoma (SCC) was 54.68%, for adenocarcinoma (AC) was 32.44%, for small cell carcinoma was 5.15%, and for large cell carcinoma was 1.91%. The remainder 5.82% were adenosquamous cell carcinoma...