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RT @Allergy_bio: Comparison of methacholine and mannitol challenges: importance of method of methacholine inhalation: Direct inhalation cha…
RT @Allergy_bio: Comparison of methacholine and mannitol challenges: importance of method of methacholine inhalation: Direct inhalation cha…
Comparison of methacholine and mannitol challenges: importance of method of methacholine inhalation: Direct inhalation challenges (e.g. methacholine) are stated to be more sensitive and less specific for a diagnosis of asthma than are indirect challenges…