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( Inseon S. Choi ),( Seo Na Hong ),( Yeon Kyung Lee ),( Youngil I. Koh ),( An Soo Jang ),( Hyeon Cheol Lee ) 대한내과학회 2003 The Korean Journal of Internal Medicine Vol.18 No.2
Background: Airway hyperresponsiveness (AHR) to direct stimuli, such as methacholine (MCh), is observed not only in asthma but other diseases. AHR to indirect stimuli is suggested to be more specific for asthma. The purpose of this study was to determine