This study investigated whether 184 volunteers from 20 to 79 years of age could perform eight timed balance tests and examined the relationship between test performance and age. All subjects were able to balance with their feet together and eyes closed for 30 seconds. The ability to balance on the right and left legs did not differ significantly. Subjects over 60 years of age were unable to balance on one leg, particularly when their eyes were closed, for as long a period as younger subjects. The Pearson product-moment and Spearman correlations of age and duration of one-legged balance were -.65 and -.71 (eyes opened) and -.79 and -.75 (eyes closed). The findings suggest that when timed balance tests are performed as a part of a patient's neurologic examination, the results should be interpreted in light of the patient's age. Information is provided to assist in this interpretation.

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The present study was performed to identify tumor cells in lymph nodes from colorectal adenocarcinomas considered free of disease by the classic hematoxylin-eosin stain, based on the detection of the carcinoembryonic antigen (CEA) and cytokeratins in neoplastic epithelial cells. For this purpose, 603 lymph nodes from 46 lesions were stained by the peroxidase-antiperoxidase technique. Tumor cells were detected in 22 nodes from 12 patients, mainly in the subcapsular sinuses, permitting a restaging of these patients into two groups: those now considered to have metastatic disease and those free of metastases. However, the 5-year follow-up showed no statistical differences in survival between the two groups.

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in the city of Sio Paulo, Brazil. We usd Poisson regression techniques, adjusted for season and weather. The association between itmuterine moraity and air pollution was strong for NO2 (cfficient 0 0013/p 3; pc0.01) but lesser for SO2(coefficient = 0.0005/pg/m3; p

in the city of Sio Paulo, Brazil. We usd Poisson regression techniques, adjusted for season and weather. The association between itmuterine moraity and air pollution was strong for NO2 (cfficient 0 0013/p 3; pc0.01) but lesser for SO2(coefficient = 0.0005/pg/m3; p

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