Till, D.

patient salmeterol formoterol group price difference treatment contact country trial quality number medication visit 6 months asthma pharmacoeconomics 1998 dec month study hospital improvement health italy inhaled unit costs formoterol group pharmacoeconomic comparison analysis table score right salmeterol 50µ g resource use production loss salmeterol group trial medication service © adis healthcare spain information sweden symptom symptom score france respir resource physician absence effect range specialist rescue production unit prices interquartile range salbutamol 3 months healthcare use duration switzerland ölken cost-effectiveness 2 treatment groups formoterol 12µ g inpatient rutten-van m ölken mann whitney u-test percentage nurse powder rutten-van period ratio disease randomised outcome treatment groups 6 countries