RESULTS	The time-profile for PNIF recovery [ area under the 60 min time-response curve as % PNIF change ( min ) ] were significantly attenuated for AMP challenge , as mean difference [ 95 % confidence interval ( CI ) ] : 11.57 ( 3.87 , 19.25 ) , P = 0.005 and for allergen challenge : 17.82 ( 0.11 , 35.53 ) , P = 0.04 .\