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BACKGROUND Sarcoidosis is associated with an increase in the number of alveolar T cells (CD3(+) cells) and an increase of the CD3(+)CD4(+) lymphocyte subset. However, the number of lymphocytes and the CD4/CD8 ratio in bronchoalveolar lavage (BAL) fluid are highly variable in sarcoidosis. Comparative studies have demonstrated that geographic and ethnic(More)
PURPOSE Sarcoidosis affected lungs detected in more than 90% of patients. The relationship between different stages of pulmonary sarcoidosis and pulmonary function tests (PFT) as well as bronchoalveolar lavage fluid (BALF) cells can be established. Geographic and ethnic factors are known to be linked to the specific characteristics of patients with(More)
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