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目的研究结核菌素皮试阳性人员岗前常规胸片筛查的阳性率及其异常表现。材料与方法本研究符合HIPAA规定,经医院委员会批准并签署知情同意书。研究对
Objective To study the positive rate and its abnormality of the positive screening of tuberculin skin test in preganglionic routine chest radiography. Materials and Methods The study was conducted in accordance with the HIPAA regulations. The hospital committee approved and signed the informed consent form. Research right