Nocturnal oxygen saturation and body movement in asthmatics treated with controlled-release preparations of theophylline or terbutaline

Nine adult asthmatics with a history of nocturnal symptoms and with morning dips in peak expiratory flow (PEF) were treated for 10-14 days with 24-h controlled-release preparation of theophylline (Th), or a controlled-release preparation of terbutaline (Te), in a double-blind cross-over experiment....

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