Bergmann, K.-C., Lindemann, L. and Steinkamp, G. 2004. Salmeterol/fluticasone propionate (50/250 µg) combination is superior to double dose fluticasone (500 µg) for the treatment of symptomatic moderate asthma. Swiss Medical Weekly. 134, 0304 (Jan. 2004), 50–58. DOI:https://doi.org/10.4414/smw.2004.10403.