Conclusion X-ray findings of senile pulmonary tuberculosis on the chest films with clinical course (newly detected or reinfection tuberculosis) are different.
结论老年性肺结核的X线表现随着结核类型(新感染或再感染)而不同。
Conclusions Exogenous reinfection was a major cause of tuberculosis recurrence in Shanghai.
结论外源性再感染是上海地区结核病复发的重要原因；
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