| After intratracheal elastase instillations, we confirmed histologically the dose-dependent emphysematous changes throughout the lung. |
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| Similar findings have been reported in rats at later time points, that is, 6 hours, 24 hours, and 7 days after intratracheal instillation of ultrafine carbon black particles. |
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| To quantitate the magnitude of neutrophilic lung inflammation, we investigated the cellular profile of BAL fluid of the lungs 24 hours after the intratracheal instillations. |
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| There were no atypical cells in cytologic preparations of pleural effusions or intratracheal sputa. |
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| Most reported ectopic intratracheal thyroid tissues were removed through a laryngotracheal fissure. |
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| Pathological features of different sizes of nickel oxide following intratracheal instillation in rats. |
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| Comparative long-term toxicity of Libby amphibole and amosite asbestos in rats after single or multiple intratracheal exposures. |
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| Intratracheal ectopic thyroid tissue is a rare finding, with few cases reported in the literature. |
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