severe asthma
We conclude that long-acting       beta 2-agonists were mainly prescribed to middle-aged and elderly patients and       that formoterol appeared to be preferentially prescribed to patients with more       severe asthma than salmeterol.
We conclude that long-acting       beta 2-agonists were mainly prescribed to middle-aged and elderly patients and       that formoterol appeared to be preferentially prescribed to  @OBJECT$   @PREDICAT$  more        @SUBJECT$  than salmeterol.