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The respiratory epithelial clearance of 99mTc-(DTPA) diethylenetriamine penta-acetate (RC-DTPA) was measured in rats before and after sham or cigarette smoke exposures. RC-DTPA was increased by cigarette smoke exposure (p less than 0.001); the amount and duration of the exposure had no significant effect. In smoker animals, the number of bronchoalveolar(More)
This report concerns 12 patients, eight young adults and four adolescents, presenting with lumbar or sciatic pain. This was associated with an unusual defect of the inferior and posterior edges of the vertebral bodies of L4 or L5, together with a small bony ridge protruding into the spinal canal. We found 11 similar cases in the literature, all involving(More)
To compare features of tuberculosis detected either clinically or radiologically, we studied 498 patients hospitalized for tuberculosis. Tuberculosis was less frequently radiologically-detected in patients over 65 yrs old (p less than 0.01) and in directorial staff and inactive subjects (p less than 0.0001). Pleural effusion and radiological cavities were(More)
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