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editRegarding sensitivity and specificity: if it has a good specificity and a poor sensitivity as suggested, then it will be a good test to rule asthma in, but poor to rule asthma out. The text is contradictory. Paul — Preceding unsigned comment added by 203.2.94.29 (talk) 08:12, 30 June 2011 (UTC)
Article seems biased for use of this technique. — Preceding unsigned comment added by 67.67.201.117 (talk) 19:20, 18 July 2013 (UTC)