antileukotriene
Clinical studies with antileukotriene drugs have indeed demonstrated that       leukotrienes are significant mediators of airway obstruction evoked by many       common trigger factors in asthma.
Clinical studies with  @SUBJECT$  @PREDICAT$  @OBJECT$  have indeed demonstrated that       leukotrienes are significant mediators of airway obstruction evoked by many       common trigger factors in asthma.