A. Common Secondary Lung Cancers B. The Advantages Brought about by Routine Chest Checkup C. Relationship Between Mortality Rate

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问题 A. Common Secondary Lung Cancers
B. The Advantages Brought about by Routine Chest Checkup
C. Relationship Between Mortality Rate from Lung Cancer and Smoking Habits
D. Operable and Inoperable Lung Cancers
E The Increasing Death Rate from Lung Cancer and Possible Causes
F An Ordinary Type of Lung Cancer
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