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Fairfax A, Hall I, Spelman R. A randomized, double-blind comparison of beclomethasone dipropionate extrafine aerosol and fluticasone propionate. Ann Allergy Asthma Immunol. 2001 May;86(5):575–82. doi: 10.1016/s1081-1206(10)62907-9. PMID: 11379810. |