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Changes in sputum endothelin (ET)-1 level in patients under anti-tuberculosis (TB) chemotherapy. Patients with active pulmonary TB were treated with a weight-adjusted fixed-dose of Rifafour e-275. Changes in the sputum ET-1 level (pg/ml) from baseline (day 0) on days 1, 2, 4, 6, 10 and 14 were expressed as ΔSputum ET-1 and plotted against the time.
