Reference values of the provocative concentrations of methacholine that cause 6% and 20% changes in forced expiratory volume in one second in a normal population.

L Malo, J; Pineau, L; Cartier, A; R Martin, R

doi:10.1164/arrd.1983.128.1.8

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Reference values of the provocative concentrations of methacholine that cause 6% and 20% changes in forced expiratory volume in one second in a normal population.

Published in The American review of respiratory disease • Jul 1, 1983

Authors:

J L Malo

L Pineau

A Cartier

Abstract

The provocative concentrations of inhaled methacholine that cause 6% (PC6) and 20% (PC20) falls in forced expiratory volume in one second (FEV1) were assessed in a population of 100 nonsmoking persons, equally distributed for sex, who ranged uniformly from 20 to 60 yr of age. These subjects had no r...

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